P4 Heat and Light Revision | Baamboozle - Baamboozle

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Give two examples of sources of light.

The Sun OR Stars OR Fire OR Torches OR Lamps

How to make the size of a shadow bigger?

Move the light source closer to the object. OR Move the screen further away from the object.

How does heat travels?

Heat always travel from a hotter place to a colder place until both places reach the same temperature.

When an object is heated by a heat source, it will _____ heat from the heat source and _____.

When an object is heated by a heat source, it will gain heat from the heat source and expand.

Give an example of a source of heat.

The Sun OR burning wood OR Electrical appliances

When a heated object is left to cool, it will ______ heat to the surroundings and ______.

When a heated object is left to cool, it will lose heat to the surroundings and contract.

Give an example of a material that is a good conductor of heat.

metal

Temperature is measured in _______________ using a ___________.

Temperature is measured in degree Celsius (°C) using a thermometer.

Give an example of a material that is a poor conductor of heat.

plastics OR wood OR rubber

What are the poor conductors of heat?

Poor conductors of heat allow heat to flow through slower. [rate] Poor conductors of heat allow less heat to flow through. [quantity]

Light allows us to see an object when the object ___________ light into our eyes.

Light allows us to see an object when the object reflects light into our eyes.

How to make the size of a shadow smaller?

Move the light source further away from the object. OR Move the screen closer to the object.

Describe how shadow is formed.

A shadow is formed when light is partially or completely blocked by an object.

What are the good conductors of heat?

Good conductors of heat allow heat to flow through faster. [rate] Good conductors of heat allow more heat to flow through. [quantity]

What is temperature?

Temperature is a measure of how hot something is.