Quiz 9-A

the change of an object's position

• motion
• friction

• momentum

• velocity

a force that keeps objects from moving against other objects

• friction
• motion

• momentum

• velocity

determined by the mass and velocity of an object

• momentum
• motion

• acceleration

• friction

the speed of a moving object in a given direction

• velocity
• motion

• acceleration

• fricton

occurs whenever an object speeds up, slows down, or changes direction

• acceleration
• motion

• friction

• velocity

Write the letter of the correct answer. Answers may be used more than once: First Law of Motion

• A. Force is equal to the mass of an object and its acceleration.

• B. When one object exerts a force on another object, the second object reacts by exerting an equal force back on the first object.

• C. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same direction and speed.

Write the letter of the correct answer. Answers may be used more than once: Second Law of Motion

• A. Force is equal to the mass of an object and its acceleration.

• B. When one object exerts a force on another object, the second object reacts by exerting an equal force back on the first object.

• C. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same direction and speed.

Write the letter of the correct answer. Answers may be used more than once: Third Law of Motion

• A. Force is equal to the mass of an object and its acceleration.

• B. When one object exerts a force on another object, the second object reacts by exerting an equal force back on the first object.

• C. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same direction and speed.

Ruth likes to play softball and go bowling. She uses less force to throw a softball than she uses when she rolls a bowling ball.

• A. Force is equal to the mass of an object and its acceleration.

• B. When one object exerts a force on another object, the second object reacts by exerting an equal force back on the first object.

• C. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same direction and speed.

Dad slammed on the brakes when a ball bounced out in front of our car. My sister's doll that had been on the back seat ended up on the floor.

• A. Force is equal to the mass of an object and its acceleration.

• B. When one object exerts a force on another object, the second object reacts by exerting an equal force back on the first object.

• C. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same direction and speed.