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Final Exam_Semester 2_PS

Last updated about 2 years ago

40 questions

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Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 18

18.

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

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Question 21

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Question 22

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Question 23

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Question 24

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Question 25

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Question 31

31.

Question 32

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Question 33

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Question 34

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Question 35

35.

Question 36

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Question 37

37.

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What vocabulary word does this picture show?

Chemical equation

Reactants

Chemical bond

Law of conservation of mass

What vocabulary word does this picture show?

Molecule

Atom

Chemical reaction

Energy

What vocabulary word does this picture show?

Energy

Metallic bond

Reactants

Ionic bond

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

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

Question 6

6.

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

What vocabulary word does this picture show?

Reversible

Irreversible

Radiation

Heat transfer

What vocabulary word does this picture show?

Conduction

Melt

Convection

Freeze

What vocabulary word does this picture show?

Boil

Conduction

Convection

Melt

What vocabulary word does this picture show?

Reversible

Freeze

Boil

Melt

What vocabulary word does this picture show?

Melt

Freeze

Convection

Irreversible

Question 16

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Question 17

17.

In what direction does heat transfer?

From hotter objects to cooler objects.

From cooler objects to hotter objects.

Heat does not move.

Question 19

19.

Question 20

20.

What vocabulary word does this picture show?

Chemical energy

Electrical energy

Law of conservation of energy

Kinetic energy

What vocabulary word does this picture show?

Kinetic energy

Sound energy

Thermal energy

Potential energy

What vocabulary word does this picture show?

Sound energy

Chemical energy

Electrical energy

Light energy

What vocabulary word does this picture show?

Potential energy

Law of conservation of energy

Chemical energy

Light energy

What vocabulary word does this picture show?

Chemical energy

Law of conservation of energy

Thermal energy

Potential energy

Question 26

26.

Question 27

27.

Question 28

28.

Question 29

29.

Question 30

30.

What vocabulary word does this picture show?

Collision

Breaking point

Deform

Free body diagram

What vocabulary word does this picture show?

Force

Collision

Elastic limit

Fragile

What vocabulary word does this picture show?

Force

Damage

Fragile

Elastic limit

What vocabulary word does this picture show?

Energy

Peak force

Collision

Object

Which house has damage?

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.

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.

Question 38

38.

Question 39

39.

Question 40

40.

Is this equation balanced?

Yes

No

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.

What is the correct way to balance this equation?

Is this equation balanced?

Yes

No

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.

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

Reversible

Irreversible

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.

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

Radiation

Conduction

Convection

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.

What kind of energy transformation is happening in the picture?

Chemical to electrical

Potential to sound

Chemical to kinetic

Light to kinetic

What kind of energy transformation is happening in this picture?

Light to electrical

Potential to kinetic

Sound to light

Electrical to light

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

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

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.

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.

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. 🙃 

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.