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Final Exam_Semester 2_PS

Last updated almost 2 years ago

40 questions

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Question 1

1.

What vocabulary word does this picture show?

Chemical equation

Reactants

Chemical bond

Law of conservation of mass

Question 2

2.

What vocabulary word does this picture show?

Molecule

Atom

Chemical reaction

Energy

Question 3

3.

What vocabulary word does this picture show?

Energy

Metallic bond

Reactants

Ionic bond

Question 4

4.

Look at the picture. It shows the reactants and products in the elephant toothpaste reaction. What are the reactants?

Question 5

5.

Look at the picture. It shows the reactants and products in the elephant toothpaste reaction. What is the product?

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Question 6

6.

Is this equation balanced?

Yes

No

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Question 9

9.

Is this equation balanced?

Yes

No

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Question 11

11.

What vocabulary word does this picture show?

Reversible

Irreversible

Radiation

Heat transfer

Question 12

12.

What vocabulary word does this picture show?

Conduction

Melt

Convection

Freeze

Question 13

13.

What vocabulary word does this picture show?

Boil

Conduction

Convection

Melt

Question 14

14.

What vocabulary word does this picture show?

Reversible

Freeze

Boil

Melt

Question 15

15.

What vocabulary word does this picture show?

Melt

Freeze

Convection

Irreversible

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Question 16

16.

Does this picture show a change that is reversible or irreversible?

Reversible

Irreversible

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Question 18

18.

In what direction does heat transfer?

From hotter objects to cooler objects.

From cooler objects to hotter objects.

Heat does not move.

This picture shows a woman holding a cup of hot tea.

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Question 19

19.

Is this an example of radiation, conduction, or convection?

Radiation

Conduction

Convection

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Question 21

21.

What vocabulary word does this picture show?

Chemical energy

Electrical energy

Law of conservation of energy

Kinetic energy

Question 22

22.

What vocabulary word does this picture show?

Kinetic energy

Sound energy

Thermal energy

Potential energy

Question 23

23.

What vocabulary word does this picture show?

Sound energy

Chemical energy

Electrical energy

Light energy

Question 24

24.

What vocabulary word does this picture show?

Potential energy

Law of conservation of energy

Chemical energy

Light energy

Question 25

25.

What vocabulary word does this picture show?

Chemical energy

Law of conservation of energy

Thermal energy

Potential energy

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Question 26

26.

What kind of energy transformation is happening in the picture?

Chemical to electrical

Potential to sound

Chemical to kinetic

Light to kinetic

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Question 27

27.

What kind of energy transformation is happening in this picture?

Light to electrical

Potential to kinetic

Sound to light

Electrical to light

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Question 31

31.

What vocabulary word does this picture show?

Collision

Breaking point

Deform

Free body diagram

Question 32

32.

What vocabulary word does this picture show?

Force

Collision

Elastic limit

Fragile

Question 33

33.

What vocabulary word does this picture show?

Force

Damage

Fragile

Elastic limit

Question 34

34.

What vocabulary word does this picture show?

Energy

Peak force

Collision

Object

Question 35

35.

Which house has damage?

Question 36

36.

This cup has gone above its elastic limit. Why?

It will change back to how it was before.

It has deformed permanently and will not change back to how it was before.

It is completely broken because it is past its breaking point.

Question 37

37.

Look at the picture. The angry boy is applying a force to the chair.
Is the chair deforming?

No.

Yes.

Maybe; it depends on the size of the force.

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Question 38

38.

What is true about the forces in the collision between the soccer player's head and the ball?

The force on the head is equal to the force on the ball.

The force on the head is bigger than the force on the ball.

The force on the head is smaller than the force on the ball.

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Question 7

7.

Why? How do you know?

The Ags are equal and the Os are equal on the reactants side and the products side.

The Ags are equal, but the Os are not equal on the reactants side and the products side.

The Ags are not equal and the Os are not equal on the reactants side and the products side.

Question 8

8.

What is the correct way to balance this equation?

Question 10

10.

Why? How do you know?

The reactants and products are not equal.

The reactants and products are equal.

There are 2 Os on the reactants side but 3 Os on the products side.

Question 17

17.

Why?

It is making a new substance and cannot be changed back.

It is still the same substance and can be changed back.

It is heat transfer with touch.

Question 20

20.

Why?

Because it is heat transfer with touch.

Because it is heat transfer with no touch.

Because it is heat transfer in a circle with warm liquid rising and cool liquid falling.

Question 28

28.

What kind of energy does the roller coaster have at the top of the hill at point A?

Potential energy

Light energy

Kinetic energy

Electrical energy

Question 29

29.

What kind of energy does the roller coaster have when it is moving down the hill at point B?

Kinetic energy

Potential energy

Chemical energy

Sound energy

Question 30

30.

What happens as the roller coaster moves from point A to point B?

Potential energy increases, and kinetic energy decreases.

Potential energy decreases, and kinetic energy decreases.

Potential energy decreases, and kinetic energy increases.

Potential energy increases, and kinetic energy increases.

Question 39

39.

What happens to the ball when the player's head applies a force to it?

The ball breaks.

The ball deforms.

The ball gets bigger.

The ball is happy. 🙃 

Question 40

40.

If the speed of the ball increased, what would happen to the forces in the collision?

They would decrease.

They would stay the same.

They would increase.