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Q 1/71
Score 0
Speed is defined as ________ / time.
30
force
displacement
distance
acceleration
Q 2/71
Score 0
Observe the photo.
The driver of a car accidentally leaves his briefcase on top of the car and prepares to leave for work. Because the car accelerated slowly, the briefcase did not move initially and is now moving with the car. According to Newton's first law of motion, what will happen if the car comes to a sudden stop?
30
It is impossible to predict what will happen without knowing the mass of the briefcase.
Friction will keep the briefcase in place, even while the car comes to a stop.
The briefcase will remain in place because the forces acting upon it are balanced.
The briefcase will continue moving forward and slide off the front of the car.
71 questions
Q.
Speed is defined as ________ / time.
1
30 sec
Q.
Observe the photo.
The driver of a car accidentally leaves his briefcase on top of the car and prepares to leave for work. Because the car accelerated slowly, the briefcase did not move initially and is now moving with the car. According to Newton's first law of motion, what will happen if the car comes to a sudden stop?
2
30 sec
Q.
Raoul told Sophie he skateboards 5 m/second down the street. Sophie wondered if she was faster so Raoul timed her. She skateboarded for 200 meters and it took her 26 seconds. Who was the faster skateboarder?
3
30 sec
Q.
The workout times of three swimmers were recorded below. Which swimmer had the workout represented by the graph?
4
30 sec
Q.
A person pushes a box with an unknown force and it begins to move. If the force of friction is 2N, what can you infer about the force applied by the person?
5
30 sec
Q.
A bus travels from Austin to Dallas.
Use the information on the image to calculate the average speed of the bus.
6
30 sec
Q.
A student wanted to track his improvements over time in speed. He made it around a 400 meter track three times in 13 minutes and 12 seconds. His average speed was __________________________ meters/second.
1 minute= 60 seconds
7
30 sec
Q.
Nate swims the backstroke in a race that goes back and forth 4 times in the pool. One pool length is 25 meters. He swims the first half of the race in 57 seconds, and the second half in 63 seconds. What is his average speed for the entire race?
8
30 sec
Q.
Over the course of an hour, a car travels 50 km to the west, turns around, and travels 25 km to the east. What is the car's average velocity?
9
30 sec
Q.
Which is a measurement of velocity?
10
30 sec
Q.
Observe the photo.
To get to school, a student walks east down one street for exactly 4 km and then turns left, heading north for 3 km. If the student takes 40 minutes to get to school, what is their average speed?
1hr= 60 minutes
11
30 sec
Q.
A family on vacation headed out in their car to do some sight-seeing. During what time interval did they travel the fastest?
12
30 sec
Q.
A group of students were investigating how changing the steepness of an incline could affect the speed that a marble would travel through a tube. Using the information on the image, what was the marble’s speed?
13
30 sec
Q.
Two students are investigating how to make a paper airplane fly faster. Josue added a paperclip to the nose of his plane, and Teagan made her plane narrower and pointier than Josue’s plane. Josue’s plane flew for 9 seconds and went 10 meters. Teagan’s plane flew for 7 seconds and went 13 meters. Which plane was faster?
14
30 sec
Q.
This question has two parts. First, answer Part A. Then, answer Part B.
Part A: To get to school, a student walks east down one street for exactly 4 km and then turns left, heading north for 3 km. What is the student's total displacement?
15
30 sec
Q.
Part B
If the student rides his bicycle to school, he can follow the same path and complete the trip in 35 minutes. What is the student's average velocity?
16
30 sec
Q.
The graph shows three bikers in a bicycle motocross race. Which biker went faster as the race went on?
17
30 sec
Q.
Fill in the blank: ________ do not cause a change in motion.
18
30 sec
Q.
Fill in the blank with the correct letter: A data tracker on a remote controlled car collected the data on the graph. The speed of the car is constant at Point _____________________. The speed of the car is increasing at Point _______________ . The car is at rest at Point __________________.
19
30 sec
Q.
Akira walks to school each morning. This morning, she walked part way to school before she realized that she was late. She jogged the rest of the way. After school she walked slowly home. Which graph best represents Akira’s trip to school and back?
20
30 sec
Q.
This question has two parts. First, answer Part A. Then, answer Part B.
Part A
A pair of students attached data trackers to their paper airplanes to track their movements. What is the average speed of the paper airplane labeled Plane 1?
Hint:
Average Distance: 5m-1m =
Average Time: 4s -1s=
21
30 sec
Q.
This question has two parts. First, answer Part A. Then, answer Part B.
Part B
Fill in the blank question.
Was Plane 2 traveling faster, slower, or the same speed as Plane 1?
22
30 sec
Q.
When a car slows down or changes direction, the forces acting upon it are _____________.
23
30 sec
Q.
A hot air balloon contains air that expands as it is heated. What type of thermal energy transfer causes a hot air balloon to rise?
24
30 sec
Q.
When a substance is cooled, what happens to the particles of the substance?
25
30 sec
Q.
The total amount of thermal energy in an object depends on its temperature and its ___________.
26
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Wooden handle
27
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Plastic handle
28
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Metal pans
29
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Cloth pot holder
30
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Metal Fork
31
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Plastic spatula
32
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Glass lid
33
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Metal knife
34
30 sec
Q.
Is this item a good conductor of thermal energy or a poor one?
ITEM: Ceramic plate
35
30 sec
Q.
Observe the photo
Two equal volume of water are in a large container, separated by a divider. The water on one side is at 60 °C and the water on the other side is 40 °C. How will you know when the container has reached thermal equilibrium once you have removed the divider?
36
30 sec
Q.
Wind is a result of the uneven heating of Earth’s surface. What type of energy transfer occurs when warm air rises and forces cooler air masses downward?
37
30 sec
Q.
How well some materials conduct heat is shown in the table. Would acrylic or glass be a better material for an aquarium, if the goal is to keep an aquarium at a temperature that is cooler than the temperature of the room that it is kept in?
38
30 sec
Q.
Luis and Marta built a solar oven. They cut the top of a box so it could function like a lid. They then lined the lid and the entire inside of the box with aluminum foil. They placed a piece of black construction paper at the bottom of the box, and after putting hotdogs on a plate inside so they could cook, they sealed the top up with plastic wrap. Their solar oven is shown in the image. The aluminum foil maximized which type of energy transfer?
39
30 sec
Q.
Alayna wants to make a popsicle, so she freezes a cup of juice. If the juice has cooled from 20 degrees Celsius to 10 degrees Celsius, what has happened to the kinetic energy of the juice molecules?
40
30 sec
Q.
Observe the photo.
The image shows patterns of movement of the material within Earth's mantle. How are these movements related to the transfer of thermal energy?
41
30 sec
Q.
A _________ is a material through which thermal energy moves slowly.
42
30 sec
Q.
Fill in the blank: The greater the motion of particles in a substance, the ___________________________ a substance’s temperature.
43
30 sec
Q.
During which phase does water have the most kinetic energy?
44
30 sec
Q.
Which of the beakers contains a liquid that is warmer than the other?
45
30 sec
Q.
Why does wearing a coat on a cold day keep you warm?
46
30 sec
Q.
The image shows an example of what kind of heat transfer?
47
30 sec
Q.
When the temperature of a substance is high, the molecules of that substance move ________.
48
30 sec
Q.
Brennan turned on a lamp with a bare lightbulb. He held a thermometer about 10 cm away from the middle of the lightbulb. The thermometer showed that the temperature was increasing. He then placed a book between the lightbulb and the thermometer for 5 minutes. What is the likely outcome that he observed?
49
30 sec
Q.
Kevin has a cup of hot tea for himself and a cup of room temperature tea for his young son. What can be said about the kinetic energy of the particles in the two cups of tea?
50
30 sec
Q.
Which statement best explains why the 4 inner planets of the solar system are called terrestrial planets?
51
30 sec
Q.
Part A:
The diagram shows the habitable zone of the Sun. The habitable zone is the zone in which planets may have some conditions necessary to support life.
Which inner planet is least likely to have conditions necessary to support life?
52
30 sec
Q.
Part B:
Which evidence supports your answer in Part A?
53
30 sec
Q.
The arrows in the diagram represent the force of gravity.
Why are the arrows in row C thicker than the arrows in row D?
54
30 sec
Q.
Meteors and asteroids are solid objects in space. Which statement describes the difference between them?
55
30 sec
Q.
The figure shows the positions of the eight planets in the solar system. Size and distance are not to scale in this figure.
At which position is the Kuiper belt?
56
30 sec
Q.
The Sun's gravity affects the motions of objects in the solar system.
Which objects would have the greatest gravitational pull with the Sun?
57
30 sec
Q.
The Moon moves around Earth in space.
Why doesn't Earth move around the Moon?
58
30 sec
Q.
Suppose astronomers discover a planet in a distant solar system.
Which characteristics should the planet have to support life as we know it?
59
30 sec
Q.
The shaded area in the graph shows the habitable zone for stars of different sizes, including the Sun, which has a stellar mass of 1. The habitable zone is the zone in which a planet could potentially have liquid water on its surface.
What pattern do you see in the data?
60
30 sec
Q.
Which statement best explains the difference between asteroids and comets?
61
30 sec
Q.
Part A
The gravitational pull of a planet or moon affects how slowly or quickly a spacecraft would land on its surface. The table shows the gravitational pull of different objects in our solar system.
Suppose you wanted to land a spacecraft on the surface of these objects. On which object would you be most concerned about the spacecraft landing too quickly and crashing?
62
30 sec
Q.
Part B
What is your evidence for Part A?
63
30 sec
Q.
As the solar system formed, the material that made up the planets collided and stuck together. The planets became more massive.
What happened to the gravity of the planets?
64
30 sec
Q.
The Moon is moving about 3.8 cm farther from Earth each year.
What will happen to the force of gravity between Earth and the Moon in the far future?
65
30 sec
Q.
The shaded area in the diagram shows the habitable zone for the Sun. The habitable zone is the zone in which a planet could potentially have liquid water on its surface.
Which statement describes the habitable zone for the Sun?
66
30 sec
Q.
The table compares the characteristics of Earth and Venus.
Which characteristic explains why Earth has life and Venus does not?
67
30 sec
Q.
The figure shows the positions of the eight planets in the solar system. Size and distance are not to scale in this figure.
At which position is the asteroid belt located?
68
30 sec
Q.
The Goldilocks (also known as the _______________ zone) principle describes the characteristics a planet must have to support life as we know it.
Based on what you know about Earth, which of the following is NOT a part of this principle?
69
30 sec
Q.
Spacecraft that travel far into the solar system use the gravity of planets to help them increase or decrease speed or change direction. This process is called gravity assist.
The table below shows the gravitational pull of the outer planets.
Which outer planet would provide the greatest gravity assist?
70
30 sec
Q.
Gravity affects the motion of objects in our solar system.
How would Earth travel in space if the Sun's gravity did not exist?
