Chapter 11 - Forces

A push or a pull is called

• Motion

• Force

• Acceleration

• Velocity

James combines all the forces acting on a tennis ball. He is finding the

• Net Force

• Inertia Force

• Gravitational Force

• Frictional Force

Janet is sliding a box across the floor. What does she need to know to calculate the FORCE on the box?

• Mass and inertia

• Acceleration and friction

• Mass and Acceleration

• Friction and Gravity

The resistance of an object to a change in its motion is known as

• Gravity

• Inertia

• Mass

• Unbalanced Force

A soccer player kicks a ball at rest. What do you predict will happen?

• The ball will not move

• The ball will lose momentum

• The ball will accelerate in the direction opposite the applied force

• The ball will accelerate in the same direction as the applied force

According to Newton's second law of motion, force equals mass times

• Velocity

• Momentum

• Acceleration

• Mass

When you push on a door, the door pushes back with an equal and opposite force. These two forces are known as

• Mass and Velocity Pairs

• Unbalanced Force Pairs

• Mass and Acceleration Pairs

• Action/Reaction Pairs

Newton's First Law states that an object in motion will ____________________________ unless acted on by another force

• stay in motion

• lose speed

• do nothing

• remain at rest

Newton's Third Law states that every action has a ________ and ________ reaction

• equal and opposite

• unequal and opposite

• equal and chemical

• unequal and chemical

Newton's Second Law says that to increase the acceleration of an object, you

• increase force

• decrease force

• increase mass

• increase inertia