5.P.1.1/5.P.1.4 Study Guide

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What material can increase friction on a bicycle ramp?

Back

Sand is a material that can increase friction on a bicycle ramp.

Front

What happens to an object at rest if no forces are acting on it?

Back

The object will stay at rest.

Front

What is the relationship between mass and force needed to move an object?

Back

The more mass an object has, the more force is needed to move it.

Front

What is an example of a force that reduces the speed of an object?

Back

A brake rubbing against a wheel is an example of a force that reduces the speed of an object.

Front

What must happen for a moving car to change direction?

Back

Another force must act on the car to change its direction.

Front

What is the definition of force?

Back

Force is a push or pull on an object that can cause it to move, stop, or change direction.

Front

What is the effect of gravity on objects?

Back

Gravity pulls objects toward the center of the Earth, affecting their weight and motion.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is an example of a balanced force?

Back

Two people pushing a car in opposite directions with equal force is an example of balanced forces.