02 - SSA - Physical Science Review (6.P.13.1 / 13.3)

Quiz by Oksana Tariche

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21 questions
• Q1
Luis rubbed a balloon on his hair and held the balloon next to the wall. He observed the balloon stick to the wall. Which of the following is responsible for the balloon sticking to the wall?
Friction
Magnetic force
Gravity
Electric force
30s
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• Q2
Gravity is a force that every mass exerts on every other mass. When you jump up in the air, not only does the Earth exert a gravitational force on you, but you also exert a gravitational force on the Earth. You, of course, fall back down to the Earth. Which of the following explains why the Earth is not moving toward you when you jump up in the air?
Earth's fixed orbit around the Sun keeps it from moving.
You don't weigh enough to affect Earth's surface.
Your mass is very small compared to Earth's mass.
Earth exerts a gravitational force on itself.
30s
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• Q3
Meg designs an experiment to see which of three types of sneakers provides the most friction. She uses the equipment listed below. 1. Sneaker 1 3. Sneaker 3 2. Sneaker 2 4. Spring scale She uses the setup illustrated above and pulls the spring scale to the left. In what direction does the force of friction act?
To the right
Downward
Upward
To the left
30s
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• Q4
Penny says that dust particles in space cannot be pulled together by gravity because they have very little mass. Emma says as long as the dust particles have any mass at all, gravity can pull them together. Who has a better argument and why?
Penny, because objects with only a little mass are not affected by gravity
Emma, because objects with smaller mass have more gravity acting on them
Emma, because any two objects exert a gravitational force on each other
Penny, because dust particles in space are far from Earth so there is no gravity
30s
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• Q5
Gordon is making a list of forces for his science class. Which of the following should Gordon NOT list as a force?
Mass
Friction
Gravity
A push or pull
30s
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• Q6
Ignoring mass and weight contributed by fuel, what happens when the space shuttle takes off and moves away from Earth?
Its mass decreases and weight increases.
Its mass increases and weight decreases.
Its mass remains constant and weight increases
Its mass remains constant and weight decreases.
30s
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• Q7
The law of universal gravitation states that any two objects in the universe that have mass, without exception,
Attract each other.
Repel each other.
Combine to provide a balanced force.
Create friction.
30s
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• Q8
The forces acting on a falling apple are
Gravity and friction (air resistance).
Mass and inertia.
Gravity and inertia.
Inertia and friction.
30s
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• Q9
The gravitational force between two objects increases as mass
Decreases or distance increases.
Increases or distance increases.
Increases or distance decreases.
Decreases or distance decreases.
30s
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• Q10
The force of gravity on a person or object on the surface of a planet is called
Mass.
Terminal velocity.
Free fall.
Weight.
30s
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• Q11
Which of the following is an example of a contact force?
Magnetic force
Gravitational force
Normal force
Electrical force
30s
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• Q12
A force acting in the opposite direction of an object in motion. It slows down the motion or actually stops it.
Gravity
Friction
Buoyant
Normal
30s
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• Q13
The sum of all forces acting on an object and direction
Balanced Force
Unbalanced Force
Contact Force
Net Force
30s
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• Q14
What is the net force of an object that is not moving?
Upward force
100N
Downward force
0N
30s
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• Q15
The type of forces that will cause an object to move or to change its motion (speed/ direction):
Balanced forces
A net force of 0
Unbalanced forces
Applied forces
30s
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• Q16
Calculate the net force (value and direction)
22 N - to the right (towards Daniel and Maria)
22 N - to the left (towards Bryan and Alyssa)
2 N - to the left (towards Bryan and Alyssa)
2 N - to the right (towards Daniel and Maria)
30s
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• Q17
The diagram below shows forces acting on a model airplane. Both its speed and height above the ground are constant. Which of the following conditions would cause the model airplane to descend toward the ground?
The lift is less than the weight.
The thrust is equal to the weight.
The thrust is greater than the drag
The lift is equal to the drag.
30s
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• Q18
What happens when two forces act on the same object in the same direction?
Their sum divided by two is the total force.
The stronger one prevails.
They cancel each other out.
30s
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• Q19
What statement CORRECTLY describes the motion of an object which motion is represented by the graph?
The object was moving at a constant speed between 9:00 and 11:00 as well as between 12:00 and 12:30, but it moved faster during 9:00 and 11:00 .
The object was slowing down between 12:30 and 14:00
The object was speeding up between 9:00 am and 11:00 am
The object was at rest (not moving) between 11:00 am and 12:00
30s
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• Q20
What is the net force in this diagram?
2 N right
2 N left
8 N right
8 N left
30s
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