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Reviewer for the First Quarter Exam - VCS

Total questions: 80

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

Which of the following explains why a passenger in a speeding bus is thrown forward when the bus suddenly stops?

a)

acceleration

b)

gravitation

c)

inertia

d)

interaction

2.

The action and reaction forces referred to in Newton's third law of motion ____________________________.

a)

act on different bodies

b)

act on the same bodies

c)

need not to be equal in magnitude

d)

must have the same line of action

3.

A mass is doubled and the net force is kept constant. The acceleration of the body _________________.

a)

is halved

b)

remains the same

c)

is doubled

d)

is tripled

4.

A bag lies on top of a table. Which statement correctly describes the situation?

a)

The bag exerts no force on the table.

b)

There are no forces acting on the bag.

c)

The bag is absolutely at rest in any reference frame.

d)

There are may forces acting on the bag but they balance each other.

5.

Newton is the unit for ______.

a)

mass

b)

acceleration

c)

inertia

d)

force

6.

Law of Interaction states that to every action there is an _____ and _____ reaction.

a)

equal, positive

b)

opposite, positive

c)

equal, opposite

d)

opposite, negative

7.

kilogram is the unit for ________.

a)

mass

b)

force

c)

acceleration

d)

inertia

8.

Newton's first law of motion states that an object at rest will continue to stay at rest unless there is a/n ___________ acting on the object.

a)

balanced force

b)

unbalanced force

c)

acceleration

d)

mass

9.

The more force that you apply, the more ________________ an object has.

a)

acceleration

b)

inertia

c)

mass

10.

What is the mathematical expression of the second law of motion?

a)

F=maF=\frac{m}{a}

b)

F=maF=ma

c)

F=m+aF=m+a

11.

How much force is required to accelerate a 40 kg car at 5 ms25\ \frac{m}{s^2}    ?

a)

35 N

b)

45 N

c)

8 N

d)

200 N

12.

What is the mass of a car toy that accelerates 3  ms2\frac{m}{s^2}  with 30 N?

a)

90 kg

b)

25 kg

c)

10 kg

13.

How much acceleration will produce in a 250 kg car with 500 N?

a)

0.5 ms20.5\ \frac{m}{s^2}

b)

2 ms22\ \frac{m}{s^2}

c)

250 ms2250\ \frac{m}{s^2}

14.

The animation represents what Law of Motion?

a)

1st Law

b)

2nd Law

c)

3rd Law

15.

The animation represents what Law of Motion?

a)

1st Law

b)

2nd Law

c)

3rd Law

16.
A particle P is moving in a circle with uniform speed. Which one of the following diagrams correctly shows the direction of the acceleration a and velocity v of the particle at one instant of time?
a)
A
b)
B
c)
C
d)
D
17.

Bruno the bat has a mass of 0.58 kg and flies at a speed of 0.8 m/s in circle of radius 0.5 m. What is his acceleration?

a)

0.25 m/s2

b)

1.3 m/s2

c)

1.6 m/s2

d)

0.74 m/s2

18.
What is the direction of the velocity at point B, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
19.
What is the direction of the acceleration at point A, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
20.
Centripetal acceleration always points
a)
in the direction of the object's motion
b)
in the opposite direction of the object's motion
c)
towards the center of the circle
d)
towards the outside of the circle
21.
The velocity is always _____ to the line of a circle. 
a)
outwards
b)
towards the center
c)
tangent
d)
faster
22.

The motion of the Moon around the Earth is an example of ____________.

a)

uniform action

b)

projectile motion

c)

rectilinear motion

d)

circular motion

23.

A car travels in a circle at constant speed. Which of the following is TRUE about the net force on the car?

a)

zero because the car is not accelerating.

b)

directed towards the direction of travel

c)

directed towards the center of the circle.

d)

none of the above.

24.

What can be said of an object in uniform circular motion?

a)

It has a constant velocity.

b)

It is an example of Newton's First Law in the absence of a force.

c)

It has a constant tangential speed.

d)

none of the choices given

25.

What is the most direct cause of a car's centripetal acceleration as it rounds a curve?

a)

The force of the steering wheel

b)

The weight of the car.

c)

The normal force exerted by the road.

d)

The friction between the tires and the road.

26.

The centripetal acceleration, ac also points toward the center of the circle and has a magnitude given by

a)

a =v2Ra\ =\frac{v^2}{R}

b)

a =mv2Ra\ =\frac{mv^2}{R}

c)

a =Fma\ =Fm

d)

a = vRa\ =\ \frac{v^{ }}{R}

27.

Sound is a form of energy produced by ______________.

a)

Vibrations

b)

Distances

c)

Prisms

d)

Forces

28.

Sound waves travel the FASTEST through _____________.

a)

Gases

b)

Liquids

c)

Solids

29.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
30.

Which of the following sound wave produces the highest pitch of sound?

a)
b)
c)
d)
31.

Which waveform has the lowest frequency?

a)

(a)

b)

(b)

c)

(c)

d)

(d)

e)

(e)

32.

If the distance represented by the letter A (the amplitude) were increased, how would it change the sound?

a)

The sound would be higher.

b)

The sound would be softer.

c)

The sound would be lower.

d)

The sound would be louder.

33.

Frequency is measured in the unit of

a)

Ampere (A)

b)

Hertz (Hz)

c)

Mole (mol)

d)

Meter (m)

34.

Which of the following statement is true?

a)

The higher the amplitude, the higher the pitch of sound

b)

The lower the amplitude, the louder the sound

c)

The higher the frequency, the higher the pitch

d)

The lower the frequency, the louder the sound

35.

What property of this wave is represented by the letter "A"?

a)

amplitude

b)

crest

c)

trough

d)

wavelength

36.

Which has the greatest energy among the colors in a rainbow?

a)

green

b)

orange

c)

red

d)

violet

37.

Among the following colors in a rainbow, which has the least energy?

a)

green

b)

red

c)

violet

d)

yellow

38.

What is the acronym used to remember visible light?

a)

DOGFOUND

b)

KTPERRY

c)

ROYGBIV

d)

ROMERO

39.

What is called the separation of white light into different colors as it passes through prism?

a)

color separation

b)

dispersion

c)

reflection

d)

refraction

40.

Which of the following orders of visible light colors shows increasing wavelength?

a)

red, orange, yellow, green, blue, indigo, violet

b)

red, yellow, green, orange, violet, blue, indigo

c)

violet, indigo, blue, green, yellow, orange, red

d)

violet, blue, green, orange, red, indigo, yellow

41.

Why does white light separate into different colors as it passes through a prism?

a)

The colors are changed by addition.

b)

This is an example of color by subtraction.

c)

Different colored light has different wavelengths.

d)

The side part of a prism only let certain colors of light pass through.

42.

A second prism will change a spectrum back into white light. What does it show?

a)

Prism distort image.

b)

Prisms are transparent.

c)

Light travels at a constant speed.

d)

White light is composed of colors.

43.

Which of the following is true about the relationship between frequency and energy?

a)

The frequency of the color of light and energy are not related.

b)

As the frequency of the color of light increases, its energy decreases.

c)

As the frequency of the color of light decreases, the energy increases.

d)

As the frequency of the color of light increases, the energy also increases.

44.

Which of the following statements is incorrect?

a)

Short wavelength corresponds to low frequency.

b)

Frequency and wavelength are inversely related.

c)

High frequency light corresponds to short wavelength.

d)

Low frequency light corresponds to long wavelength.

45.

White light separated through a prism is an example of ___________.

a)

diffraction

b)

rarefaction

c)

reflection

d)

refraction

46.

What happens when a cold drink sits in a hot room?

a)

It remains cold

b)

It gets warmer

c)

It starts boiling

d)

It starts to freeze

47.

When two things are the same temperature:

a)

They have the same number of molecules

b)

Their molecules stop moving

c)

Their molecules move at the same average speed

d)

Heat transfer between the two things stops

48.

Heat and Temperature are ______

a)

same

b)

different

c)

opposites

49.

Heat is a form of ________

a)

power

b)

energy

c)

temperature

50.

Heat is measured in ________

a)

degrees

b)

grams

c)

Joules

51.

Temperature is measured in ________

a)

degrees

b)

grams

c)

Joules

52.

Temperature is ____________

a)

thermal energy

b)

a measure of how hot or cold an object is,

c)

is the transfer of energy from one object to another.

53.

Heat is transferred from _____ objects to ______ objects

a)

big,small

b)

cold,hot

c)

hot,cold

54.

Energy can transform from one type to another, but it can never be destroyed or created.

a)

True

b)

False

55.

The movement of an electrical charge of electron is called ______.

a)

Electric Current

b)

Circuit

c)

Voltage

d)

Resistance

56.

The SI Unit for electric current is _____.

a)

Watt

b)

Volt

c)

Ohm

d)

Ampere

57.

The Unit for Voltage is _____.

a)

Watt

b)

Volt

c)

Ohm

d)

Ampere

58.

The Unit for Resistance is _____.

a)

Watt

b)

Volt

c)

Ohm

d)

Ampere

59.

A complete path for the electric current to flow is _____.

a)

Electric Current

b)

Circuit

c)

Voltage

d)

Resistance

60.

This is the measurement of the difficulty of the current to flow through the circuit.

a)

Electric Current

b)

Circuit

c)

Voltage

d)

Resistance

61.

This is the energy from the source used to Move or Push 1 coulomb of electron through the circuit.

a)

Electric Current

b)

Circuit

c)

Voltage

d)

Resistance

62.

1. This device helps prevent electrical fires.

a)

A fuse

b)

A double insulator

c)

A receptacle cover

d)

A circuit breaker

63.

The safety device shown here is

a)

An active wire

b)

A fuse

c)

An earth wire

d)

A double insulator

64.

A circuit breaker does the same job as a

a)

earth wire

b)

fuse

c)

switch

d)

AVR

65.

Why is it important to use these electrical

safety devices at home?

a)

To make our home safe

b)

To lessen the consumption of electricity

c)

To protect people from fire and electrocution

d)

None of these

66.

Earthing and double insulation work in

similar ways, and that is to protect people

from electrocution or shock. Which device

is present in a hairdryer, iron, and electric

fan?

a)

Earth wire

b)

Double Insulation

c)

Both A and B

d)

Neither A nor B

67.

In a low temperature, Sound travels fast.

a)

TRUE

b)

FALSE

68.
Compared to its speed in air, the speed of light in water is:
a)
Faster
b)
The same
c)
Slower
69.

WHAT IS MEASURED WITH A THERMOMETER

a)

Heat

b)

Temperature

c)

Thermal Energy

d)

Heat and Temperature

70.

While standing in a large empty room, Lisa can hear her voice echoing as she speaks. Which most likely causes the echo?

a)

Sound is absorbed

b)

Sound is reflected

c)

sound is refracted

d)

Sound is broken

71.

The greater the change in temperature, the more heat is added or removed.

a)

True

b)

False

72.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
73.
which point has the most potential energy
a)
G
b)
f
c)
b
d)
a
74.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
75.
How much pontential energy is at the top of a hill on a rollar coaster ride
a)
100%
b)
50%
c)
0%
d)
20%
76.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
77.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
78.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
79.
Japan’s fasted high speed “bullet” trains, also known as the Shinkansen, travel at a speed of 88.9 m/s. It has an estimated mass of 480,000 kg. What is the maximum KE of this train?
a)
259,000 Joules
b)
1,896,770,400 Joules
c)
10,444,678 Joules
80.
A weight lifter lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?
a)
12,789 Joules
b)
24,525 Joules
c)
4,500 Joules

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