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Q 1/20
Score 0
On a sunny day, Heidi and some of her classmates are playing kickball during PE. She kicks the ball past second base, and it rolls uphill to a stop. She runs to first base, but before she gets any farther, the bell rings and everyone has to go back inside.
Which of these is an example of kinetic energy changing to potential energy?
120
The sun warming the playground
The bell ringing inside the school
The ball rolling uphill to a stop
The players running from base to base
Q 2/20
Score 0
The illustration below shows the locations of a rock as it rolls
down a slope.
Which location shows the rock with the greatest potential energy?
120
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20 questions
Q.
On a sunny day, Heidi and some of her classmates are playing kickball during PE. She kicks the ball past second base, and it rolls uphill to a stop. She runs to first base, but before she gets any farther, the bell rings and everyone has to go back inside.
Which of these is an example of kinetic energy changing to potential energy?
1
120 sec
Q.
The illustration below shows the locations of a rock as it rolls
down a slope.
Which location shows the rock with the greatest potential energy?
2
120 sec
Q.
Emma constructed a simple motor. When connected correctly, the coil of copper wire spins.
Which of the following best describes the energy transformation that takes place between the paper clips and the spinning coil?
3
120 sec
Q.
The picture shows the process that causes a glow stick to emit light. (typically the person will use their hands to bend and crack the stick in the middle).
Based on the picture, which of the following describes the energies involved?
4
120 sec
Q.
A group of sheep are grazing in a field. As they eat, the sheep break down the molecules in the grass, which releases energy.
Which form of energy is stored in the grass?
5
120 sec
Q.
Which is the BEST example of something that has kinetic energy?
6
120 sec
Q.
An example of kinetic energy continuously being changed to potential energy and back again might be _______.
7
120 sec
Q.
Kito puts his spoon into a helping of fresh, hot, mashed potatoes as shown in the figure below.
Which process takes place when the two objects come together?
8
120 sec
Q.
At which labeled point does the diver have the LEAST potential energy?
9
120 sec
Q.
At which labeled point does the diver have the GREATEST kineticl energy?
10
120 sec
Q.
Ashton warms a pure, solid substance. He graphs the changes in temperature over time as shown in the figure. What is happening as he warms the substance?
11
120 sec
Q.
As Warren holds a pan over a fire, the water begins to boil as shown in the figure. What process, indicated by the letter Z, allows the transfer of energy in form of waves?
12
120 sec
Q.
As Warren holds a pan over a fire, the water begins to boil as shown in the figure below. The metal handle of the pan becomes very hot, causing an uncomfortable sensation in Warren’s hand.
What process, indicated by the letter Y, was responsible for transferring energy to Warren’s hand?
13
120 sec
Q.
Ashton warms a pure, solid substance. He graphs the changes in temperature over time as shown in the figure. What is happening as he warms the substance?
14
120 sec
Q.
As Warren holds a pan over a fire, the water begins to boil as shown in the figure. What process, indicated by the letter X, happens due to the difference in water temperature and densities?
15
120 sec
Q.
On a hot summer day, the water in an outdoor swimming pool feels much warmer in the afternoon than in the morning. How do the particles in the water change from the morning to the afternoon?
16
120 sec
Q.
Gordon throws a baseball into the air. It rises, stops momentarily when it reaches its greatest height, and then falls back to the ground. At what point does kinetic energy convert to potential energy?
17
120 sec
Q.
A hot air balloon is able to float, because a flame warms up the air nearest to it. Then, the warm air rises while the cold air sinks. This process happens over and over again, which is why a hot air balloon can rise. This type of heat transfer is ________.
18
120 sec
Q.
Inside a room, the air is often warmer near the ceiling than near the floor.
Which process accounts for this difference in temperature?
19
120 sec
Q.
Mrs. Aldaco added a room-temperature copper (Cu) cube and an aluminum (Al) cube that she just removed from the freezer to a beaker of boiling water. She left the cubes in the water for three hours.
Which of the following describes a heat flow that took place during those three hours?
