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Science 8 Finals

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

The force that acts perpendicular to the surface or presses the two surfaces together.

a)

Centripetal force

b)

Rarefaction

c)

Normal force

d)

Power

2.

Kind of friction that keeps an object "glued" to the surface that are sliding past each other.

a)

Coefficient of friction

b)

Static friction

c)

Compression

d)

Normal force

3.

A push or a pull upon an object resulting from the object's interaction with another object.

a)

Sounds

b)

Force

c)

Friction

d)

Work

4.

The product of the force and the displacement of the object in the direction of the force.

a)

Work

b)

Power

c)

Force

d)

Acceleration

5.

The rate of doing work.

a)

Sound

b)

Friction

c)

Force

d)

Power

6.

The rate of velocity.

a)

Acceleration

b)

Power

c)

Force

d)

Friction

7.

The boiling point of water is 100'C.

a)

Maybe

b)

False

c)

True

d)

None of the above

8.

The boiling point of water is 273.15 K.

a)

False

b)

Maybe

c)

True

d)

None of the above

9.

These are matter that has definite shape and volume.

a)

Gas

b)

Liquid

c)

Plasma

d)

Solid

10.

When there are two types of atom in the same molecule.

a)

Matter

b)

Solution

c)

Compound

d)

Fusion

11.

Mass and weight is the same.

a)

False

b)

Maybe

c)

True

d)

None of the above

12.

The coldness and hotness of an object.

a)

Humidity

b)

Weight

c)

Temperature

d)

Volume

13.

There are 5 Laws of Motion.

a)

True

b)

False

c)

Maybe

d)

None of the above

14.

Lubricants are used to increase friction.

a)

Maybe

b)

False

c)

True

d)

None of the above

15.

When two objects interact, they exert forces on each other.

a)

True

b)

False

c)

Maybe

d)

Non of the above

16.

Mass is expressed on newton and weight in kilograms.

a)

Yes

b)

Maybe

c)

No

d)

None of the above

17.

Inertia is a measure of an object's weight.

a)

True

b)

False

c)

Maybe

d)

None of the above

18.

The thickest part of the earth's interior.

a)

Mantle

b)

Surface

c)

Core

d)

Magnitude

19.

The unit of power.

a)

Pounds

b)

Inches

c)

Power

d)

Watt

20.

The capability to do work.

a)

Energy

b)

Force

c)

Power

d)

Work

21.

Formation of carbohydrates from carbon dioxide and a source of hydrogen in the chlorophyll-containing cells exposed to light.

a)

Photosynthesis

b)

Hydrotropism

c)

Phototropism

d)

Digestion

22.

The study of inheritance and variation.

a)

Heredity

b)

Biology

c)

Genetics

d)

History

23.

Mineral found in rocks and sediments on the ocean floor.

a)

Nitrogen

b)

Phosphorus

c)

Oxygen

d)

Helium

24.

The biggest vein in the human body.

a)

Pulmonary vein

b)

Vena cava

c)

Umbilical artery

d)

Alveoli

25.

The main pathway of air to the lungs.

a)

Larynx

b)

Trachea

c)

Throat

d)

Neck