Question 1

Which of the following substances turns blue litmus paper red?

Accepted Answer

Hydrochloric acid

Answer

Vinegar

Answer

Water

Answer

Sodium hydroxide

Question 2

Which of the following is a strong alkali?

Accepted Answer

Sodium hydroxide

Answer

Hydrochloric acid

Answer

Water

Answer

Vinegar

Question 3

What is the chemical formula for hydrochloric acid?

Accepted Answer

HCl

Answer

NaOH

Answer

H2SO4

Answer

HNO3

Question 4

What is the pH value of a strong acid?

Accepted Answer

Less than 7

Answer

Depends on the acid

Answer

Exactly 7

Answer

Greater than 7

Question 5

Which of the following is an example of a common alkali?

Accepted Answer

Sodium hydroxide

Answer

Vinegar

Answer

Hydrochloric acid

Answer

Water

Question 6

Which of the following is a characteristic of acids?

Accepted Answer

They have a sour taste

Answer

They have a bitter taste

Answer

They have no taste

Answer

They have a sweet taste

Question 7

Which indicator is commonly used to test for acidity or alkalinity?

Accepted Answer

Litmus paper

Answer

Thermometer

Answer

Microscope

Answer

Scale

Question 8

Which of the following substances is neutral?

Accepted Answer

Water

Answer

Sodium hydroxide

Answer

Hydrochloric acid

Answer

Lemon juice

Question 9

Which of the following is an example of a weak acid?

Accepted Answer

Vinegar

Answer

Hydrochloric acid

Answer

Sodium hydroxide

Answer

Ammonia

Question 10

What happens to the pH of a solution when it becomes more acidic?

Accepted Answer

pH decreases

Answer

pH increases

Answer

pH becomes neutral

Answer

pH remains the same

Question 11

What is the process by which solid material turns directly into a gas without becoming a liquid first?

Accepted Answer

Sublimation

Answer

Melting

Answer

Evaporation

Answer

Condensation

Question 12

What property of a material determines its ability to conduct electricity?

Accepted Answer

Electrical conductivity

Answer

Flexibility

Answer

Magnetism

Answer

Thermal conductivity

Question 13

Which of the following is an example of a physical change?

Accepted Answer

Melting ice

Answer

Cooking an egg

Answer

Rusting iron

Answer

Burning wood

Question 14

Which of the following is an example of a chemical change?

Accepted Answer

Baking a cake

Answer

Melting ice

Answer

Cutting paper

Answer

Mixing salt and water

Question 15

Which of the following is an example of a physical property of a material?

Accepted Answer

Color

Answer

Reactivity

Answer

Toxicity

Answer

Flammability

Question 16

Which of the following is an example of a chemical property of a material?

Accepted Answer

Flammability

Answer

Hardness

Answer

Temperature

Answer

Density

Question 17

What type of change occurs when a metal rusts?

Accepted Answer

Chemical change

Answer

Phase change

Answer

Mechanical change

Answer

Physical change

Question 18

Which of the following is NOT a physical property of a material?

Accepted Answer

Reactivity

Answer

Color

Answer

Texture

Answer

Density

Question 19

Which of the following processes involves the change of a liquid into a solid?

Accepted Answer

Freezing

Answer

Vaporization

Answer

Condensation

Answer

Sublimation

Question 20

What is the process of a gas turning into a liquid called?

Accepted Answer

Condensation

Answer

Sublimation

Answer

Melting

Answer

Evaporation

Question 21

Which of the following is an example of a non-contact force?

Accepted Answer

C

Answer

Rolling a ball

Answer

Pushing a box

Answer

Friction

Answer

Magnetic attraction

Question 22

Which of the following is a form of potential energy?

Accepted Answer

D

Answer

Sound energy

Answer

Gravitational energy

Answer

Heat energy

Answer

Light energy

Question 23

What is the unit of measurement for force?

Accepted Answer

B

Answer

Joules

Answer

Newtons

Answer

Watts

Answer

Pascals

Question 24

When a force is applied to an object and the object moves in the direction of the force, the work done is:

Accepted Answer

A

Answer

Negative

Answer

Variable

Answer

Positive

Answer

Zero

Question 25

Which of the following is an example of a renewable source of energy?

Accepted Answer

C

Answer

Natural gas

Answer

Solar power

Answer

Coal

Answer

Nuclear power

Question 26

Which of the following is an example of an elastic force?

Accepted Answer

B

Answer

Gravity

Answer

Spring compression

Answer

Air resistance

Answer

Friction

Question 27

What is the formula to calculate work done?

Accepted Answer

D

Answer

Force x Distance x Cosine(angle)

Answer

Velocity x Time

Answer

Force x Distance

Answer

Mass x Gravity

Question 28

Which of the following is an example of a non-renewable source of energy?

Accepted Answer

B

Answer

Hydroelectricity

Answer

Geothermal energy

Answer

Wind power

Answer

Coal

Question 29

Which of the following is an example of a contact force?

Accepted Answer

A

Answer

Gravitational pull

Answer

Pushing a door

Answer

Magnetic attraction

Answer

Rolling a ball

Question 30

Which of the following is an example of potential energy?

Accepted Answer

C

Answer

Friction

Answer

Running

Answer

A stretched rubber band

Answer

Sound waves

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