Force and Motion Quickcheck Review

A push or pull on an object

• Magnetism

• Friction

• Force

• Gravity

A force of attraction to objects with iron or steel

• magnetism

• friction

• force

• gravity

force that pulls things down to Earth

• magnetism

• friction

• force

• gravity

Force created by rubbing against an object

• magnetism

• friction

• force

• gravity

Students conduct an investigation in which they let the same car roll down the same ramp with three different floor types in their school. Which of the following would be the best testable question?

• How does the mass of a toy car affect its speed?

• What mechanical advantage does an inclined plane give?

• Why does gravity make a toy car roll down a ramp?

• How does friction affect how far a toy car will travel?

Students conduct an investigation in which they let the same car roll down the same ramp with three different floor types in their school. What is the control variable in the situation?

• students

• floor surfaces and location

• car and ramp

• school

Students want to know if a bowling ball or basketball, dropped from the same height, hit the ground at the same time. What is the experiment testing?

• wind

• friction

• gravity

• magnetism

Magnets with opposite poles

• attract

• repel

True or false: All forces are unbalanced.

• True

• False

True or False: All forces involve more than one object

• True

• false