Year 7 energy revision

Which is NOT a form of energy?

• Thermal or heat

• Electric

• Solar

• Chemical

• Sound

The law of conservation of energy states...

• energy can be created from renewable resources like sunlight

• energy is destroyed by burning fuels

• energy is great for making pizzas

• energy cannot be created or destroyed, only transferred.

Which is not a form of POTENTIAL energy?

• Elastic

• Chemical

• Gravitational

• Sound

What is the measurement for energy?

• Joules

• newtons

• kilograms

• centimeters

What is 15 kilojoules (kJ) in joules (J)?

• 15 000 J

• 1.5 J

• 150 J

• 1500 kJ

How can we test food to see how much energy it has?

• We can burn it and see how much it heats water

• We can measure its weight on a scale

• We can eat it and see how high we can jump

• We can burn it and see how big the fire is

What might happen if you eat too little food?

• You feel tired

• It is hard to concentrate

• Its difficult to exercise

• All of the above

How do plants get their energy?

• From the soil through their roots

• From the water through their roots

• From kinetic energy

• From sunlight through their leaves

How is energy wasted when we turn on a light?

• Electrical energy is transferred to heat energy and light energy is wasted

• Light energy is transferred to heat energy and electrical energy is wasted

• Electrical energy is transferred to light energy and heat energy is wasted

• Chemical energy is transferred to light energy and heat energy is wasted

How do we use wind for energy?

• Wind moves turbines which converts kinetic energy to electrical

• Wind moves turbines which converts thermal energy to electrical

• Wind converts kinetic energy to sound

• Wind converts elastic energy to electrical