Force and Motion Review

What BEST describes the motion of an object?

• change in direction over time

• change in position over time

• change in height over time

• change in speed over time

Which would be used to describe how fast an object is moving?

• energy

• force

• mass

• speed

Which affects the motion of an object?

• force only

• mass only

• both force and mass

• neither force nor mass

You are playing with a basketball and you throw it in the air one time, it bounces back in the air and then return to the ground- why does the basketball come back down?

• It is pushed down by air

• It is pulled down by gravity

• It is attracted by the material on the ground.

• It is pushed away by the material of your shoes

When you are jumping on a trampoline-what causes you to come back down after each jump?

• gravity

• balance of your weight

• trampoline is above ground level

• trampoline is bigger than you

A student tries to move a toy car on various surfaces using the same force. On which surface will the toy experience the LEAST amount of friction

• grassy lawn

• glass pane

• cement side walk

• carpeted floor

Which is the best example of an unbalanced force?

• a person standing in the gym bleachers

• a person pushing up against a gym wall

• a ball sitting on the gym floor

• a ball rolling across the gym floor

While skateboarding, Jamie noticed that after she stopped pushing the skateboard gradually slowed down. What is causing the slowing?

• energy

• friction

• gravity

• magnetism

A ball is pushed off the edge of a table to the floor. The ball moves faster and faster as it comes down. What factor causes the motion of the ball to change as it falls to the floor?

• the force of gravity

• the mass of the ball

• the height of the table

• the force applied to the ball from the push

What will cause a soccer ball to stop as it rolls across a field?

• electricity

• friction

• gravity

• magnetism