Question 1

It is anything that transforms the speed and direction of moving objects.

Accepted Answer

Force

Question 2

Force can make a moving object bounce.

Accepted Answer

true

Answer

false

Question 3

A _________________ is a piece of object that attracts materials made of iron or steel.

Accepted Answer

Magnet

Question 4

The Earth is a huge magnet.

Accepted Answer

true

Answer

false

Question 5

The natural magnet known as lodestone is a type of iron ore called  _______________

Accepted Answer

Magnetite

Question 6

Physical activities, like exercise, are good in keeping your body fit and healthy.

Accepted Answer

true

Answer

false

Question 7

Which of the objects attract to magnet.

Accepted Answer

coin

Answer

paper

Answer

wood

Answer

plastic

Question 8

It is a form of energy that given off the sun and other light producing bodies.

Accepted Answer

Light

Question 9

It is the bending  of light rays as they pass through a transparent medium.

Accepted Answer

Refraction

Question 10

It is the bouncing back of light.

Accepted Answer

Reflection

Question 11

________________ is a change in position of an object using  the reference point.

Accepted Answer

Motion

Question 12

Forces can stretch  an object.

Accepted Answer

true

Answer

false

Question 13

Forces can make an object float or sink in a liquid.

Accepted Answer

true

Answer

false

Question 14

Forces  can make a moving object swerve and change directions.

Accepted Answer

true

Answer

false

Question 15

____________ is a form of energy that is given off by the sun and other light producing body.

Accepted Answer

Light

Question 16

__________ is the bouncing back of light.

Accepted Answer

Reflection

Question 17

The _________ states  that angle of incidence is equal to the angle of reflection.

Accepted Answer

Law of Reflection

Answer

Law of Gravity

Question 18

____________ occurs when light strikes a rough surface then scatters in different directions.

Accepted Answer

Diffusion

Question 19

A Concave lens makes objects look smaller. It is thinner in the middle than at the medium .

Accepted Answer

true

Answer

false

Question 20

A ______________lens makes object look bigger.

Accepted Answer

convex

Question 21

At home, keep at a safe distance  while watching television.

Accepted Answer

true

Answer

false

Question 22

Avoid long exposures to the screen or monitor.

Accepted Answer

true

Answer

false

Question 23

Do not apply sunblock or lotion to avoid sunburn.

Accepted Answer

false

Answer

true

Question 24

Do not look direct  at the Sun or any sources of very bright light.

Accepted Answer

true

Answer

false

Question 25

Protect your eyes. Use  sun glasses if you cannot  avoid exposure  too much sunlight.

Accepted Answer

true

Answer

false

Question 26

_______ is the highness or lowness of sound.

Accepted Answer

Pitch

Question 27

_____________ refers to the loudness or softness of sound.

Accepted Answer

Intensity

Question 28

The three elements of sound are timbre, decibel and wave length.

Accepted Answer

false

Answer

true

Question 29

A ___________  is a device used to determine the speed of sound in water.

Accepted Answer

Fathometer

Question 30

___________ is a form of energy produced by vibrating body.

Accepted Answer

Sound

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