Science Module 6 Review

What happens to an object when it is pushed?

• It will move towards whatever is pushing it.

• It will move closer to whatever is pushing it.

• It will move away from whatever is pushing it.

• It will move next to whatever is pushing it.

Which of the following images shows a person using force to pull something?

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• 
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What does gravity do on Earth?

Answer explanation

Gravity pulls objects toward the center of the Earth.

An airplane is flying over the North Pole. Which arrow correctly shows the direction gravity pulls the plane.

• 1.

• 2.

• 3.

• 4.

While rollerblading, a cat jumps from a tree and lands in front of you. You use your brakes and you come to a sliding stop. Which force greatly increases when you use your brakes and slide?

• push

• pull

• friction

• gravity

Where is the friction as the greyhounds run?

• There is friction between the greyhounds and the dirt.

• There is friction between the air and the dirt.

• There is friction between the dirt particles.

• There is friction between the greyhound's paws and tail.

To make an object travel a very short distance, what size force should be applied to the object?

• medium

• small

• strong

• weak

If there were no friction, what would happen to the girl after she slides down the slide and hits the ground?

• The girl would stop once she hits the ground.

• The girl would stop instantly.

• The girl will slide for a few minutes, but then she would stop sliding.

• The girl would keep sliding even after she hit the ground.

Julian is playing golf. He predicts he can make the ball move a longer or shorter distance depending on the force he applies. Which of the following conclusions matches his prediction?

• The force applied to the ball has little effect on the distance it travels.

• The force of motion is different when a strong or a weak force is applied to the ball.

• When a strong force is applied to the ball, the ball will travel a shorter distance.

• When a weak force is applied to the ball, the ball will travel a longer distance.

Watch Norm Duke roll his bowling ball. Which statement describes the force of motion when hitting an air hockey puck?

• When Norm uses a strong force to roll the ball, there is a smaller change in motion.

• When Norm uses a weak force to roll the ball, there is a greater change in motion.

• A strong force and a weak force result in the same change in motion.

• When a stronger force is applied to the object, the change in motion is greater.