EM / Light Review

The longest wavelength in the EM spectrum, used to transmit signals.

• radio

• gamma

• UV

• x-rays

Useful in cooking. These waves vibrate water molecules, raising the temperature of food.

• radio

• gamma

• microwaves

• x-rays

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Means "below red". We sense this as heat and it is often used in heat lamps for reptiles.

• radio

• infared

• microwaves

• x-rays

Tags

NGSS.MS-PS3-4

NGSS.MS-PS4-2

The wavelength our eyes can see. Red is the longest of these and violet is the shortest.

• infrared radiation

• microwaves

• radio waves

• visible light

Found naturally in sunlight. Can cause cancer and sunburn but sunscreen protects against these rays.

• Ultraviolet (UV)

• Microwaves

• x-rays

• visible light

Pass easily through skin and muscle but are blocked by bones. Can be used to take pictures of the skeleton.

• X-rays

• Gamma Rays

• Visible Light

• Ultraviolet Radiation

Tags

NGSS.MS-PS4-2

Extremely high frequency waves produced by radioactive elements and nuclear explosions.

• Infrared

• Gamma rays

• X-rays

• Microwaves

Tags

NGSS.MS-PS4-2

Electromagnetic waves travel through empty space

• True

• False

Electromagnetic waves are longitudinal

• True

• False

Tags

NGSS.HS-PS4-3

The cornea is the white protective layer on the outside of the eye.

• True

• False