Chapter 4 Review

Front

What does Kinetic Energy depend on?

Back

Kinetic Energy depends on mass and velocity.

Front

What is the formula for calculating Gravitational Potential Energy?

Back

Gravitational Potential Energy (GPE) = mass (kg) × gravitational acceleration (9.8 m/s²) × height (m).

Front

What type of energy do gasoline and rocket fuel store?

Back

Gasoline and rocket fuel store Chemical Energy.

Front

What is the definition of Energy?

Back

Energy is the ability to cause change.

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) = 0.5 × mass (kg) × velocity² (m/s)².

Front

What is the Gravitational Potential Energy of an 80 kg diver at a height of 10 m?

Back

Gravitational Potential Energy = 80 kg × 9.8 m/s² × 10 m = 7,840 J.

Front

What is the Kinetic Energy of a sprinter with a mass of 80 kg running at 10 m/sec?

Back

Kinetic Energy = 0.5 × 80 kg × (10 m/s)² = 4,000 J.

Front

What is the difference between Potential Energy and Kinetic Energy?

Back

Potential Energy is stored energy based on position, while Kinetic Energy is energy of motion.

Front

What is an example of Mechanical Energy?

Back

A moving car has Mechanical Energy due to its motion and position.

Front

What is the unit of Energy in the International System of Units (SI)?

Back

The unit of Energy is the Joule (J).