5.3 Performance Matters Force, Energy, Motion Review

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion. The faster an object moves, the more kinetic energy it has.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a rock at the top of a hill has potential energy.

Front

How can you determine if an object's speed is increasing?

Back

If the distance it travels over equal time intervals is increasing, then its speed is increasing.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces rub against each other.

Front

Which surfaces typically have the most friction?

Back

Surfaces like sandpaper and carpet have high friction, making it harder for objects to slide over them.

Front

What does it mean if two objects are traveling in the same direction at equal speeds?

Back

It means that both objects are moving at the same rate and will maintain the same distance from each other.

Front

What is the relationship between speed and distance?

Back

Speed is the distance traveled per unit of time. If speed increases, the distance covered in the same time also increases.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 * mass (m) * velocity (v)².

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.

Front

What is the effect of gravity on potential energy?

Back

Gravity affects potential energy; the higher an object is above the ground, the more potential energy it has.