P1 Energy Flashcard

Front

Which type of energy is stored in the nucleus of an atom?

Back

Nuclear energy

Front

How is energy transferred by heating?

Back

From an object with higher temperature to one with lower temperature.

Front

What is the formula for calculating gravitational potential energy?

Back

E_p = mgh

Front

What is the unit of power?

Back

Watt (W)

Front

Efficiency in energy transfer

Back

The useful output energy divided by the total input energy.

Front

Which of the following is a way to reduce energy wasted due to air resistance or drag in water? Lubrication, Streamlining, Insulation, Heating

Back

Streamlining

Front

What type of energy is transferred when a force moves or changes the shape of an object?

Back

Mechanical work

Front

Name five energy stores.

Back

Kinetic, gravitational potential, elastic potential, thermal, chemical

Front

Name the four ways in which energy can be transferred.

Back

Heating, waves, electric current, mechanically (by forces)

Front

What is a system?

Back

An object or group of objects