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Light travels ____________

• in a straight line

• in a zig zag line

• Everywhere

• Front and Back

Light travels

• around corners
• in a straight line

2. WHICH OF THE FOLLOWING IS A SOURCE OF LIGHT?

• the moon

• our eyes

• fire

• a mirror

Solar energy comes from the:

• space

• sun

• clouds

• air

Radiant energy is also known as ....

• nuclear energy

• mechanical energy

• light energy

• thermal energy

Radiant energy is .....

• created when nucleus of an atom changes.

• energy that travels in waves and through space.

• energy that produce work.

• the energy stored in matter.

Radiant energy can be converted into chemical energy when....

• plants absorb light energy.

• the sun heat your black shirt.

• a candle melts.

Choose the correct forms of radiant energy.

• battery, sun, bicycle

• ultraviolet rays, infrared, X-rays

• sun, light bulb, toaster

• battery, guitar, drum

When energy is moved from one place to another without changing form, this is called energy ___________.

• transformation

• transmigration

• transfer

• titration

Which form of radiation is used to check if a person is a broken bone or not?

• infrared radiation

• visible light

• ultraviolet rays

• X-ray radiation