3.0 Physics Definitions, Work & Power

Front

What is work in physics?

Back

Work is the use of force to move something.

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy that an object possesses due to its position above the ground.

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object has due to its motion.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in a system.

Front

Why do downhill skiers wax their skis?

Back

To reduce friction and increase velocity.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells produce energy from glucose and oxygen.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.