Year 4 Science

Heat is a another name for __________

• thermal energy

• electrical energy

• mechanical energy

• solar energy

Materials that do not allow electricity to pass through them are called ________

• Resistors

• Insulators

• Conductors

• Preventors

Which of these materials will allow for the flow of electricity?

• Diamond

• Gold

• Leather

• Coal

The human body can conduct electricity because:

• It is solid in nature

• The human skeleton is a good conductor of electricity

• It contains liquids

• None of the above

Which of these materials is an insulator?

• Silver

• Iron

• Aluminium

• Ceramic

Mittens help keep your hands warm in winter because:

• They are good conductors of heat

• They are fuzzy

• They are insulators

• They are conductors of electrical energy

What object would best complete this circuit?

• A connector

• A piece of cotton wool

• A conductor

• A battery

You know that the object connected to the wires is a conductor because:

• The light bulb is glowing bright

• It is a complete circuit

• It is a closed circuit

• The object is shiny

In the picture, the plastic covering is there to:

• Provide a conductor for electrical energy to flow

• Provide a conductor so that electrical energy can NOT flow

• Provide an insulator so that electrical energy will not pass outside the wires

• Provide an insulator so that electrical energy can flow

What part of a circuit controls the flow of electricity?

• Wire

• Switch

• Battery

• Motor