Physics: Light

Question 1

Is light a form of energy

Answer 1

Yes

Question 2

What travels faster - Sound or light

Answer 2

Light

Question 3

Is a light year a unit of distance or time

Answer 3

Distance

Question 4

Can light travel through a vacuum

Answer 4

Yes

Question 5

Adjective to describe something that gives off its own light

Answer 5

Luminous

Question 6

Adjective to describe something that doesn’t give off its own light

Answer 6

Non-luminous

Question 7

How can we see a non-luminous item

Answer 7

When light reflects off it and into our eyes

Question 8

How can we see a luminous item

Answer 8

When the light enters our eyes

Question 9

The speed of light

Answer 9

3,000,000 m/s

Question 10

What does light travel in

Answer 10

Waves

Question 11

How many forms of energy are there

Answer 11

Nine

Question 12

Materials that allow light to travel through it

Answer 12

Transparent

Question 13

Materials that don’t allow light to travel through it

Answer 13

Opaque

Question 14

Materials that allow a glow of light to travel through it

Answer 14

Translucent

Question 15

Something that we change to see how it affects the results of an experiment

Answer 15

Variable

Question 16

How many variables are there

Answer 16

Three

Question 17

What we are measuring

Answer 17

Dependent Variable

Question 18

Something that is kept constant

Answer 18

Control Variable

Question 19

Something that affects the dependent variable

Answer 19

Independent Variable