Chapter 5 Lesson 1 What are Forces?

Front

What can a force do?

Back

A force can start motion, stop motion, and change the direction of motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

Which object has the least amount of inertia: a quarter, a 5 lb weight, or a volleyball?

Back

A quarter has the least amount of inertia.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

What happens to oppositely charged objects?

Back

Oppositely charged objects are attracted to each other.

Front

True or False: Uniform motion is when the speed and direction change.

Back

False. Uniform motion means constant speed and direction.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move or change its motion.

Front

What is the effect of a balanced force on an object?

Back

Balanced forces do not change the motion of an object.

Front

What is the effect of an unbalanced force on an object?

Back

An unbalanced force causes an object to accelerate or change its motion.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.