3rd summative 3rd quarter Science

Application of force in order to move an object through a distance

• Work

• Force

Light has the fastest speed known to man travelling

• 299 792 458

• 394 657 118

Materials do not allow any light to pass through

• Opaque

• Transparent

Materials allow only some light to pass through

• Translucent

• Transparent

Very clear materials like glass or cellophane transmit or allow almost all of the light to pass through

• Transparent

• Opaque

Black objects absorb light

• True

• False

Give off their own light

• Luminous

• Work

What is the main source of light ?

• Sun

• Gravity

Light is a radiant energy

• True

• False

Visible energy and we can see only because there is

• Light

• Things