S2 Energy + circuits

Which food has the most chemical energy?

• A Mars bar with 350 kJ

• An apple with 400 kJ

• Bowl of spaghetti bolognese with 750 kJ

• A can of coca cola with 140 kJ

A light bulb has an input electrical energy of 200 J. Only 20 J of energy is transferred to light. How much energy is wasted as heat?

• 20 J

• 220 J

• 180 J

• 200 J

Which statement is false?

• Energy cannot be created

• Energy is the ability to do work

• Energy cannot be changed into other types of energy

• Energy cannot be destroyed

A kettle turns what type of energy into heat energy?

• Light

• Kinetic

• Nuclear

• Electrical

Which is NOT a type of energy?

• Light

• Dark

• Sound

• Potential

Which material can be used to connect a battery to a light bulb?

• Plastic

• Wood

• Copper

• Rubber

This is the symbol for?

• a battery

• a buzzer

• a bulb

• a motor

This is the symbol for?

• a battery

• a buzzer

• a bulb

• a motor

This is the symbol for?

• a battery

• a buzzer

• a bulb

• a motor

This is the symbol for?

• an amplifier

• a voltmeter

• an ammeter

• an alternating current