PS M1 Matter in Motion

Liam is playing with a toy car. He applies a push or a pull that always acts on the toy car. What is this action called?

• velocity

• acceleration

• force

• friction

Maya is riding her bicycle and experiences a change in her speed or direction. What is this change called?

• velocity

• acceleration

• force

• friction

Aaron is pushing a heavy box across the room. He notices that there is a force that always acts to oppose his motion. What is this force called?

• velocity

• acceleration

• force

• friction

Priya is observing an object moving in a straight line. She wants to determine the object's speed in a particular direction. What should she calculate?

• velocity

• acceleration

• force

• friction

a measure that does not change when an object’s location changes

• friction
• gravity
• mass
• weight

the measure of gravitational force exerted on an object

• friction
• gravity
• mass
• weight

the force of attraction between objects

• friction
• gravity
• mass
• weight

What is an object that appears to stay in place and that helps you detect motion in another object?

• a newton
• a lubricant
• a black hole
• a reference point

Which is an example of friction that is helpful?

• car engine parts wearing out
• tires moving a car forward
• holes developing in your socks
• the erosion of soil by wind

To calculate an object’s average acceleration, you need to know

• starting velocity, distance traveled, and speed.
• starting point, endpoint, and the object’s mass.
• starting velocity, final velocity, and time it takes to change velocity.
• average speed, distance, and the time it takes to change velocity.