Quiz about Final Exam Review

Question 1

A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?

Accepted Answer

454 km

Answer

400 km

Answer

300 km

Answer

500 km

Question 2

A cross-country runner runs 10 km in 40 minutes. What is his average speed?

Accepted Answer

0.25 km/min

Answer

30 km/min

Answer

4 km/min

Answer

400 km/min

Question 3

What does the slope of a distance vs. time graph tell you?

Accepted Answer

The slope indicates the speed or velocity of the object.

Answer

The slope shows the distance traveled by the object.

Answer

The slope represents the time taken for the journey.

Answer

The slope indicates the direction of the object's movement.

Question 4

Which time interval has the greatest speed?

Accepted Answer

4-6 s

Answer

0-1 s

Answer

1-2 s

Answer

3-4 s

Question 5

What is true about a car with constant velocity?

Accepted Answer

It has zero acceleration

Answer

It has positive acceleration

Answer

It has negative acceleration

Answer

The car is changing direction

Question 6

The horses on a carousel or merry-go-round are accelerating because ____.

Accepted Answer

they are changing direction while moving in a circle.

Answer

they are being pulled by a motor.

Answer

they are jumping up and down.

Answer

they are moving faster than before.

Question 7

At what point is the rate of change of velocity the greatest?

Accepted Answer

Segment A

Answer

Segment C

Answer

Segment D

Answer

Segment B

Question 8

How much does a 200 kg car weigh?

Accepted Answer

1960 N

Answer

22.6 N

Answer

1780 N

Answer

20.4 N

Question 9

An object has 16 N of force being applied to the right, 16 N of force being applied to the left, and 4 N of force being applied downward. Assume the object is suspended in the air. What is the net force on the object?

Accepted Answer

4 N downward

Answer

4 N upward

Answer

16 N to the left

Answer

16 N to the right

Question 10

The sum of kinetic energy and potential energy within a system is called

Accepted Answer

Total mechanical energy

Answer

Total energy

Answer

Kinetic potential

Answer

Mechanical work

Question 11

What is the potential energy of a 5 kg apple that is sitting on a 1.5 m high tree branch?

Accepted Answer

73.5 J

Answer

100 J

Answer

15.7 J

Answer

50 J

Question 12

Which of the following is not a type of potential energy?

Accepted Answer

Kinetic energy

Answer

Gravitational energy

Answer

Chemical energy

Answer

Elastic energy

Question 13

A box weighing 30 N is pushed a distance of 5 meters. How much work was done?

Accepted Answer

150 J

Answer

200 J

Answer

100 J

Answer

75 J

Question 14

In the diagram to the right, a roller coaster car starts from rest and moves along the track. At which point does the roller coaster car have the greatest potential energy?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 15

How much power is used if a machine does 28 J of work in 7 seconds?

Accepted Answer

4 W

Answer

2 W

Answer

10 W

Answer

6 W

Question 16

Which requires more work?

Accepted Answer

lifting a 20 kg mass a distance of 10 m

Answer

pushing a box with a force of 115 N a distance of 15 m

Question 17

An 8 kg toddler is running at a speed of 10 m/s. How much energy does he have?

Accepted Answer

400 Joules

Answer

800 Joules

Answer

600 Joules

Answer

200 Joules

Question 18

The law of ____ states that energy in a system can change forms but can never be created or destroyed.

Accepted Answer

conservation of energy

Answer

energy fluctuation

Answer

energy transformation

Answer

energy redistribution

Question 19

The diagram to the right shows four locations in a temperature field. The temperature of each location is given in degrees Celsius. Heat energy will normally flow from:

Accepted Answer

C to B

Answer

D to A

Answer

B to D

Answer

B to C

Question 20

Thermal energy is transferred to the solar panel in picture B by

Accepted Answer

radiation

Answer

conduction

Answer

convection

Answer

friction

Question 21

Which picture shows thermal energy transfer by convection?

Accepted Answer

D

Answer

B

Answer

C

Answer

A

Question 22

Kinetic energy is

Accepted Answer

the energy of an object in motion

Answer

the energy of an object at rest

Answer

the energy stored in an object

Answer

the energy released during a chemical reaction

Question 23

How much force is required to lift a rock a vertical distance of 8 m if 80 J of work were done?

Accepted Answer

10 N

Answer

80 J

Answer

10 J

Answer

80 N

Question 24

What is the potential difference (voltage) if a resistance of 20 ohms produces a current of 10 amperes?

Accepted Answer

200 volts

Answer

100 volts

Answer

50 volts

Answer

150 volts

Question 25

Which two areas of physical science are closely related to the development of electric motors and generators?

Accepted Answer

Electricity, Magnetism

Answer

Light, Magnetism

Answer

Sound, Light

Answer

Electricity, Sound

Question 26

What is the resistance of a 15 ampere current with 8 volts of potential difference?

Accepted Answer

0.53 ohms

Answer

0.75 ohms

Answer

2 ohms

Answer

1.25 ohms

Question 27

What does the symbol labeled #2 represent?

Accepted Answer

A power source in the circuit.

Answer

A resistor in the circuit.

Answer

A junction point in the circuit.

Answer

A ground connection in the circuit.

Question 28

Which of these would make the best insulator?

Accepted Answer

Rubber

Answer

Glass

Answer

Metal

Answer

Wood

Question 29

Michael is playing with two horseshoe magnets. He is trying to get them to touch, but they will not regardless of how hard he tries. Why will the magnets not come in contact?

Accepted Answer

The magnets are aligned with like poles together.

Answer

The magnets are too far apart.

Answer

The magnets are made of plastic.

Answer

The magnets are broken.

Question 30

What is the SI unit for temperature?

Accepted Answer

Kelvin

Answer

Celsius

Answer

Fahrenheit

Answer

Rankine

Question 31

Convert 99 daL to dL.

Accepted Answer

9900 dL

Answer

100 dL

Answer

999 dL

Answer

990 dL

Question 32

The speed of light is 3 x 10⁸ m/s. If its frequency is 4.11 x 10⁴ Hz, what is its wavelength?

Accepted Answer

7.299 x 10³ m

Answer

1.37 x 10^-4 m

Answer

1.23 x 10¹³ m

Answer

7.299 x 10¹¹ m

Question 33

Conduction is the transfer of heat energy by

Accepted Answer

direct contact between materials

Answer

convection in fluids

Answer

evaporation of liquids

Answer

radiation through space

Question 34

A 700 kg car is driving with an acceleration of 5 m/s² down the interstate. What is the force required to accelerate?

Accepted Answer

3500 N

Answer

1500 N

Answer

5000 N

Answer

2500 N

Question 35

Temperature measures the average ____ of the particles in a material.

Accepted Answer

kinetic energy

Answer

potential energy

Answer

thermal energy

Answer

gravitational energy

Question 36

Which law is also referred to as the Law of Inertia?

Accepted Answer

Newton's First Law of Motion

Answer

Law of Universal Gravitation

Answer

Newton's Third Law of Motion

Answer

Newton's Second Law of Motion

Question 37

What is the weight (in Newtons) of a person with a mass of 95 kg?

Accepted Answer

932 N

Answer

750 N

Answer

1000 N

Answer

850 N

Question 38

If you ride your bicycle down a straight road for 500 m then turn around and ride back to your starting point, your distance is _____ your displacement.

Accepted Answer

greater than

Answer

less than

Answer

twice as much as

Answer

equal to

Question 39

Jumping on a trampoline causes you to fly up in the air. What law is this scenario describing?

Accepted Answer

Newton's Third Law of Motion

Answer

Newton's First Law of Motion

Answer

Newton's Second Law of Motion

Answer

Law of Conservation of Energy

Question 40

Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a

Accepted Answer

gas

Answer

plasma

Answer

solid

Answer

liquid

Question 41

Which of the following is not an example of a physical change?

Accepted Answer

Letting a piece of food rot in the fridge

Answer

Breaking a glass

Answer

Dissolving sugar in water

Answer

Melting ice

Question 42

Hydrogen, gold, and iron are all examples of

Accepted Answer

elements

Answer

compounds

Answer

mixtures

Answer

isotopes

Question 43

What is the mass of a cube measuring 3 cm on each side that has a density of 8.1 g/cm

Accepted Answer

218.7 g

Answer

150 g

Answer

300 g

Answer

3.3 g

Question 44

The Law of Conservation of Mass states

Accepted Answer

Mass is not lost or created in a chemical reaction.

Answer

Mass is lost during a chemical reaction.

Answer

Mass can be created in a chemical reaction.

Answer

Mass is only conserved in physical changes.

Question 45

An element with 15 protons, 16 neutrons, and 18 electrons has a mass number of

Accepted Answer

31

Answer

32

Answer

30

Answer

29

Question 46

Atoms of elements in the same group of the periodic table share the same

Accepted Answer

Same number of valence electrons

Answer

Same number of protons

Answer

Same atomic mass

Answer

Same physical state at room temperature

Question 47

Which of the following is a transition metal?

Accepted Answer

Iron

Answer

Aluminum

Answer

Sodium

Answer

Strontium

Question 48

How many electrons will a neutral atom have if its nucleus has 10 protons and 11 neutrons?

Accepted Answer

10

Answer

9

Answer

11

Answer

12

Question 49

Two different isotopes of an element have the same

Accepted Answer

Number of protons

Answer

Mass number

Answer

Number of neutrons

Answer

Atomic weight

Question 50

What is found in the atom's nucleus?

Accepted Answer

protons

Accepted Answer

neutrons

Answer

electrons

Question 51

All electromagnetic waves

Accepted Answer

travel at the speed of light in a vacuum which is 300,000,000 m/s

Answer

are not affected by magnetic fields.

Answer

can only travel through solid materials.

Answer

travel at different speeds depending on their frequency.

Question 52

A ray of light falls on the mirror pictured to the right. Which ray best describes the path of the light reflected from the mirror?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 53

The picture to the right shows which wave behavior?

Accepted Answer

Refraction

Answer

Diffraction

Answer

Interference

Answer

Reflection

Question 54

How many wavelengths are there in the picture to the right?

Accepted Answer

3

Answer

5

Answer

4

Answer

2

Question 55

In this diagram, what letter represents a crest?

Accepted Answer

F

Answer

J

Answer

H

Answer

G

Question 56

How many electrons are being shared in a triple bond?

Accepted Answer

6 electrons

Answer

4 electrons

Answer

2 electrons

Answer

8 electrons

Question 57

Which of the following is a similarity between ionic and covalent bonds?

Accepted Answer

Both involve the interaction between atoms to achieve stability.

Answer

Both involve the sharing of electrons between atoms.

Answer

Both are formed through the transfer of protons.

Answer

Both result in the formation of metallic bonds.

Question 58

Which atoms are most likely to form covalent bonds?

Accepted Answer

Nonmetals that share electrons

Answer

Nonmetals that share protons

Answer

Metals that transfer electrons

Answer

Metals that share electrons

Question 59

Which of the following is the correct name for a compound between Magnesium and Sulfur?

Accepted Answer

Magnesium Sulfide

Answer

Magnesium Disulfide

Answer

Magnesium Sulfite

Answer

Magnesium Sulfate

Question 60

Anions are ions with a ______________ charge that are formed when an atom _______________ electrons.

Accepted Answer

negative; gains

Answer

positive; loses

Answer

neutral; gains

Answer

negative; loses

Question 61

Which pair of atoms will combine with each other and form an ionic bond?

Accepted Answer

Sodium (Na) and Chlorine (Cl)

Answer

Magnesium (Mg) and Argon (Ar)

Answer

Carbon (C) and Hydrogen (H)

Answer

Neon (Ne) and Oxygen (O)

Question 62

If something is burned, a ________________ reaction has occurred.

Accepted Answer

combustion

Answer

sublimation

Answer

reduction

Answer

oxidation

Question 63

Substances that speed up chemical reactions are called

Accepted Answer

catalysts

Answer

solvents

Answer

reactants

Answer

inhibitors

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