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Lightwaves, Wavelengths and Energy

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Which types of light can be used for photosynthesis?

a)

Blue

b)

Ultraviolet

c)

Green

d)

Red

e)

Violet

2.

Which types of light caused damage to plants?

a)

Violet

b)

Ultraviolet

c)

Indigo

d)

X-ray

e)

Gamma ray

3.

Which types of light aren't absorbed by plants

a)

Green

b)

Blue

c)

Ultraviolet

d)

Radio

4.

If a plant (a)   energy from ultraviolet light then it will become damaged.

5.

If a plant (a)   energy from a green light then the plant will not change.

6.

Definition: Emit

a)

To send out or give off something, such as light, heat, or sound.

b)

A type of eradiation that travels as a wave through space and carries energy

c)
  1. The distance from one lightwave to the next

d)
  1. The height of a lightwave

7.

Definition: LIGHTWAVE

a)

To send out or give off something, such as light, heat, or sound.

b)

A type of radiation that travels as a wave through space and carries energy

c)
  1. The distance from one lightwave to the next

d)
  1. The height of a lightwave

8.

Definition: WAVELENGTH

a)

To send out or give off something, such as light, heat, or sound.

b)

A type of eradiation that travels as a wave through space and carries energy

c)
  1. The distance from one lightwave to the next

d)
  1. The height of a lightwave

9.

Definition: AMPLITUDE

a)

To send out or give off something, such as light, heat, or sound.

b)

A type of eradiation that travels as a wave through space and carries energy

c)
  1. The distance from one lightwave to the next

d)
  1. The height of a lightwave

10.

The shorter the WAVELENGTH the (a)   the energy.

11.

The longer the WAVELENGTH the (a)   the energy.

12.

Changing the WAVELENGTH changes the (a)  

13.

Match the WAVELENGTH with the amount of energy:

a)

1.

High Energy

b)

2.

Medium Energy

c)

3.

Low Energy

14.

What LIGHTWAVES damaged plants?

a)

Ultraviolet

b)

Violet

c)

Gamma

d)

X-Ray

15.

What do all the LIGHTWAVES that damaged plants have in common?

4 lines
16.

If Gamma Rays, X-Rays and Ultraviolet Lightwaves have enough energy to damage a plant, what else do you think they can cause damage to? (Think back to the unit question.)

4 lines
17.

What is the only type of light you can see with the naked eye?

a)

Gamma Ray

b)

X-Ray

c)

Ultraviolet

d)

Visible Lightwaves

e)

Infrared

18.

Match the interactions

a)

1.

Absorb

b)

2.

Reflect

c)

3.

Transmit

19.

An object can only change if it (a)   the energy from a lightwave.

20.

An object will not go through a change if it:

a)

reflects

b)

absorbs

c)

transmits