Y9 Energy and Particle Model

What is a renewable energy source.

• Coal

• Solar Power

• Nuclear Power

• Natural Gas

What is a non renewable energy source.

• Solar Power

• Wind

• Natural Gas

• Tidal

What are the 3 MAIN types of fossil fuels?

• Coal - Oil - Nuclear

• Coal - Oil - Solar

• Oil - Coal - Gas

The unit of energy is?

• Watt

• Kilojoule

• Kilogramme

• Volt

A Radio releases 250J of energy 10J is released as heat , How much is released as sound?

• 200J

• 220J

• 240J

• 260J

The % energy efficiency of an appliance is

• total energy input/ useful energy output x 100

• useful energy output /total energy input x100

• total energy input x useful energy input x100

• useful energy output /total energy input x50

(Higher level only)What is the Formula to calculate energy transfer for Kinetic Energy?

• E_k=1/2 mv²

• 1/2mv=k

• Em²⁼1/2^k

• EK² =2mv

The rule that energy cannot be created or destroyed is

• electromagnetic energy

• energy transformation

• chemical energy

• law of conservation of energy

What is the efficiency of a solar cell if 1000 J of solar energy hits the cell and 200 J are converted into electrical energy?

• 10%

• 20%

• 30%

• 40%

What is electrical energy converted into when a drill is used?

• Kinetic energy

• Sound

• Heat

• All of the above