Force and Motion Review

Jody and Jill are rolling marbles down a ramp to see how fast they can travel. Which graph best represents the marble moving down the ramp?

• Graph A

• Graph B

• Graph C

• Graph D

Choose the TWO BEST examples of acceleration.

• A car driving 60 mph and then increasing its speed to 70 mph.

• An eagle flying in a straight line over a beautiful, blue bay of water.

• A jogger running at a constant speed on a straight road.

• A city bus slowing to a stop to pick up riders from a museum.

Which term refers to the rate of change of velocity?

• acceleration

• speed

• momentum

• velocity

What must happen to an object in order to accelerate it?

• A net force must be applied.

• Its frictional coefficient must be reduced.

• Some weight must be removed.

• It must contain momentum.

All objects in the universe are attracted to each other by the force of ____.

• effort

• friction

• gravity

• inertia

As an astronaut travels from Earth to a space station orbiting Earth, what happens to her mass and weight?

• Her mass decreases, but her weight remains the same.

• Her mass increases as her weight decreases.

• Her mass remains the same, but her weight decreases.

• Her mass and weight both decrease.

Which of the following is NOT an example of acceleration?

• A dog walker walking five dogs up and down the hills of a neighborhood.

• A motorcycle turning left at a stop sign.

• A dad pulling his son in a wagon at a constant speed down a straight road.

• A squirrel running and jumping on a tree branch and then stopping to eat an acorn.

The force that holds you to Earth’s surface is ________.

• gravity

• weight

• mass

• pressure

As Maria stood knee-deep in the ocean, she noted how high the waves came up on her compared to the day before. Which property of waves was Maria observing?

• frequency

• wavelength

• amplitude

• speed

One day in the future, a planet with half the mass of the Earth is found. If everything else is the same, what would happen to your weight if you visited the planet?

• Your weight would stay the same.

• You would no longer have any weight.

• Your weight would increase by one-half.

• Your weight would decrease by one-half.