2nd Semester Test Review

Tendency of an objet to keep its same motion.

Air is released from a balloon. The air pushes down, and the balloon goes up.

What is a change in velocity?

Jet engines are an example of which law of motion?

This law is also known as the law of inertia.

What kind of force brings everything to the center of the Earth?

Which would cause you to fall backward?

Which type of force causes a change in velocity?

Speed in a given direction.

The force with which you push on something.

For every action there is an opposite reaction.

The combination of all of the forces acting on an object

Which law tell us that it is easier to carry an empty backpack rather than one full of books?

Why would a roller skate eventually stop?

Measure of how fast something moves of the distance it moves in a given amount of time.

A hammer and a nail are the action and reaction forces. This is an example of which law of motion?

Which one requires more force for acceleration?

Force that resists the motion between two surfaces in contact.

The resistance of an object to change in the speed or the direction of motion.

Which law tells us that gravity will eventually send the ball to the ground when it is thrown?

Your books are at rest on your desk.

Water sprays out of a fireman's hose and the fireman is pushed back from the force. Which law?

Which law tells us that we nedd less force to push an empty shopping cart?

The magician quickly pulls the tablecloth from under a set of dishes. The dishes do not move.

Which law of motion uses the formula, force= mass x acceleration?

A push or a pull.

A skateboarder hits a rock and is thrown over it onto the ground.

The farther you hit a baseball, the further the ball travels.

An object's acceleration depends on its mass and the force acting upon it.

Who discovered the laws of physics?

A boy jumps off a canoe and the canoe moves in the opposite direction. Which law is this an example of?

What is the amount of matter in an object?

You need more force to pick up your binder than your pencil.

When the sum of the forces acting on any object are equal to zero.