# AC Ep 6th Grade 2012 Final Practice Science Exam (3units)

25 Questions | Total Attempts: 97  Settings  This practice exam is to help students determine which units or content they still need to review more.

• 1.
The motorcycle in this picture is an example of engineers using a ___________________ shape.
• A.

Rough

• B.

Non-streamlined

• C.

Streamlined

• D.

Hydrodynamic

• 2.
The bicycle in the picture is designed this way to improve speed by reducing ____________.
• A.

Water resistance

• B.

Air resistance

• C.

Pollution

• D.

Speed resistance

• 3.
An airplane is streamlined for travelling through the air quickly so it is ________________.
• A.

hydrodynamic

• B.

Aerodynamic

• C.

Rough

• D.

Angled

• 4.
The person on this bicycle is affected by three kinds of forces, friction with the road, air resistance and ____________.
• A.

Gravity

• B.

Drag

• C.

Turbulence

• D.

Push

• 5.
What colour is universal indicator when it is mixed with natural water?
• A.

Blue

• B.

Green

• C.

Yellow

• D.

Purple

• 6.
The roller blade in this picture reduces friction by _________________.
• A.

Increasing the amount of wheel surface in contact with the road.

• B.

Decrease the amount of wheel surface in contact with the road

• C.

Having light wheels

• D.

Having aluminum boots

• 7.
The force making this man fall is ______
• A.

Velocity

• B.

Fear

• C.

Gravity

• D.

Air resistance

• 8.
The effect of friction slowing down an object as it moves through water is ___________
• A.

Water pressure

• B.

Air resistance

• C.

Water resistance

• D.

Inertia

• 9.
Newton’s third law says that for every action there is an __________ and equal reaction.
• A.

Opposite

• B.

Equivalent

• C.

Unequal

• D.

Uneven

• 10.
The device used to measure force is called a ___________________.
• A.

Barometer

• B.

Newton meter

• C.

Anemometer

• D.

Hydrometer

• 11.
The unit used to measure force is the _______________.
• A.

Cm2

• B.

Newton

• C.

Dc

• D.

M3

• 12.
If the acceleration of an object is 12m/s/s and the force  is 100 n then what is the mass of the object?
• A.

.83 g

• B.

8.33 g

• C.

83.3 g

• D.

0 g

• 13.
The formula F=ma refers to which of Newton's three laws of motion?
• A.

Law 1

• B.

Law 2

• C.

Law 3

• 14.
Find the force of a motorcycle that has a mass of 200Kg and an acceleration of 25 m/s.
• A.

500n

• B.

7368n

• C.

5000n

• D.

8000n

• 15.
Sir Isaac Newton was famous for discovering the three laws of motion and the ____________________________.
• A.

Universal law of friction

• B.

Universal law of gravity

• C.

Universal theory of gravity

• D.

Gravity

• 16.
To reduce friction in a car engine you could add ____________________.
• A.

Lubrication

• B.

Honey

• C.

Soap

• D.

Sugar

• 17.
This symbol means _________________.
• A.

Toxic

• B.

Irritant

• C.

Harmful

• D.

Explosive

• 18.
Would this symbol apply to the alkali metal sodium?
• A.

True

• B.

False

• 19.
Citric acid would have what number on the pH scale?
• A.

PH 1

• B.

PH 12

• C.

PH 5

• D.

PH 8

• 20.
An example of a liquid with a low viscosity is______________.
• A.

Ketchup

• B.

Honey

• C.

Oil

• D.

Lemon juice

• 21.
The reaction of an acid and base is called      .
• A.

Fertilization

• B.

Neutralization

• C.

Dissolving

• D.

Explosion

• 22.
Which of the following chemical substances are alkali?
• A.

Dish soap

• B.

Citric acid

• C.

Sodium hydroxide

• D.

Hydrogen

• 23.
The following piece of lab equipment is called a ___________.
• A.

Beaker

• B.

• C.

Test tube

• D.

• 24.
Does the force of friction still happen out in space?
• A.

True

• B.

False

• 25.
When friction force occurs between two objects energy is released in the form of _____________.
• A.

Rubbing

• B.

Heat

• C.

Cold

• D.

Melting

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