Magnetic Force and Light and Its Properties

Question 1

It is a black rock that attracts objects with iron.

Answer 1

Lodestone

Question 2

It is the ability to attract objects made of iron.

Answer 2

Magnetism

Question 3

Which of the following is NOT an example of natural light?
a) Sun
b) Candles
c) Lightning
d) Fireflies

Answer 3

b) Candles

Question 4

What will happen if like poles are put close to each other?
a) attraction
b) nothing
c) sticking
d) repulsion

Answer 4

d) repulsion

Question 5

These materials get attracted to magnets.
a) iron
b) silver
c) gold
d) copper

Answer 5

a) iron

Question 6

How fast is the speed of light in a vacuum?

Answer 6

300 000 000 m/s

Question 7

Light travels fastest through _____.
a) vacuum
b) solid
c) liquid
d) gas

Answer 7

a) vacuum

Question 8

This is the bouncing back of light.

Answer 8

reflection

Question 9

It is the bending of light as it passes from one medium to another.

Answer 9

Refraction

Question 10

When light passes through a glass of water and bends the image of the pencil in the water, what type of movement of light is seen?
a) diffusion
b) diffraction
c) reflection
d) refraction

Answer 10

d) refraction

Question 11

Which of the following surfaces reflect the least amount of light?
a) white
b) black
c) green
d) blue

Answer 11

b) black

Question 12

They are materials that allow some light to pass through.

Answer 12

Translucent

Question 13

Which part of the magnetic field is the weakest?
a) north pole
b) south pole
c) middle
d) east

Answer 13

c) middle

Question 14

They are magnets that retain magnetism for a long period of time.

Answer 14

Permanent

Question 15

Which of the following is a non-magnetic material?
a) nails
b) pins
c) paper
d) thumbtacks

Answer 15

c) paper