Physics P1 Year 9 - Samantha Motion | Biblioteka

1

Which of these can happen to energy?

Destroyed

Created

Transferred

1

What type of energy store is also called movement?

Chemical

Kinetic

Gravitational potential

1

What type of diagram show energy efficiency?

Sankey

Bar chart

Pie chart

1

How do we calculate efficiency?

Useful energy out \ total energy in x 100

Useful energy in / total energy in x 100

Total energy in/ total energy out x 100

1

What are the units for energy ?

Watts

Joules

Amps

1

What is the MAIN type of energy transfer in a catapult?

Elastic to thermal

Elastic to kinetic

Elastic to chemical

1

What is the main energy transfer in a ball thrown upwards?

Kinetic to gravitational

Kinetic to elastic

Kinetic to thermal

1

What is the main form of wasted energy?

Nuclear

Thermal

Radiation

1

Which of these is a pathway NOT an energy store?

thermal

Electrostatic

Mechanical

1

What is the power equation

work done = power x time(secs)

Work done = power x time(min)

Work done = power x time (hours)