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Mini physics

Total questions: 117

Worksheet time: 2hrs 30mins

Name
Class
Date
1.

All of the following are base units of the SI system except:

a)

kilogram

b)

liter

c)

meter

d)

kilometer

2.

Physical quantities that cannot be derived from other physical quantities, sucsh as m, L and kg, are

a)

base units

b)

derived quantity

c)

physical quantity

d)

scalar quantity

3.

What is the SI unit for mass?

a)

g

b)

kg

c)

N

d)

mg

4.

What is the SI unit for length?

a)

cm

b)

m

c)

km

d)

mm

5.

Which one is not a base quantity?

a)

time

b)

weight

c)

mass

d)

length

6.

Which of the following include all SI units?

a)

miles, inches, gallons

b)

meters, miles, milliseconds

c)

liters, kilograms, meters

d)

pounds, ounces, liters

7.

Which ruler is more accurate and precise?

(Ruler 1 is on top)

a)

Ruler 1

b)

Ruler 2

c)

Ruler 3

8.

Newtons could be used to measure __________ and __________.

a)

mass, speed

b)

momentum, work

c)

force, weight

d)

direction, power

9.

SI unit for weight

a)

Pound

b)

Liter

c)

Newton

d)

Second

10.
Which instrument is commonly used to measure length?
a)
Thermometer
b)
Ruler
c)
Stopwatch
d)
Voltmeter
11.
Which instrument is commonly used to measure temperature?
a)
Voltmeter
b)
Ruler
c)
Stopwatch
d)
Thermometer
12.
What is the unit for measuring luminous intensity?
a)
Lumen
b)
Lux
c)
Watt
d)
Candela
13.
What is the unit for measuring the quantity of matter?
a)
Kilogram
b)
Gram
c)
Pound
d)
Mole
14.
A student takes measurements of the current in a resistor of constant resistance and the potential difference (p.d.) across it. The readings are then used to plot a graph of current against p.d. There is a systematic error in the current readings.
How could this be identified from the graph? 
a)
At least one anomalous data point can be identified. 
b)
The data points are scattered about the straight line of best fit. 
c)
The graph is a curve, not a straight line. 
d)
The straight line graph does not pass through the origin. 
15.

What is the unit watt in terms of SI base units?

a)

Js–1

b)

m2kgs–1

c)

m2kgs–1

d)

Nms–1

16.
The number of heartbeats of a person at rest in one hour, to the nearest order of magnitude is 
a)
101
b)
102
c)
103
d)
105
17.
Which one of the following is a scalar quantity? 
a)
Pressure
b)
Impulse
c)
Magnetic Field
d)
Weight
18.
The unit, the electron-volt is equivalent to 
a)
1.6 × 1019 J
b)
1.0J 
c)
1.6 × 10−19 J 
d)
9.1 × 10−31 J 
19.

Choose ALL of the tools that you could use to measure weight.

a)
b)
c)
d)
20.

Choose the TWO tools that you could use to measure length.

a)
b)
c)
d)
21.
a)

A

b)

B

c)

C

d)

D

22.
a)

A

b)

B

c)

C

d)

D

23.

What does this image measure

a)

volume

b)

mass

c)

length

d)

density

24.

A pendulum takes 8 seconds to make 0.5 oscillations. What is its period?

a)

T = 16

b)

T = 4

c)

T = 3

d)

T= 10

25.

If a pendulum make 3 oscillations in 5 seconds, what is its frequency?

a)

0.6 Hz

b)

0.5 Hz

c)

8 Hz

d)

1.7 Hz

26.

Find the frequency of a pendulum with the period of 0.025 seconds.

a)

0.025 Hz

b)

4 Hz

c)

40 Hz

d)

10 Hz

27.

Which of the following instruments is used to measure time?

a)

Hours

b)

Calculator

c)

Seconds

d)

Pendulum

28.

Which of the following correctly shows what is needed to find period?

a)

Time and No. of Oscillations

b)

Period, Time and No. of oscillations

c)

Period and No. of oscillations

d)

Time and Period

29.

Find the frequency of a pendulum with the period of 0.025 seconds.

a)

0.025 Hz

b)

4 Hz

c)

40 Hz

d)

10 Hz

30.

The measure of the force of gravity on an object

a)

mass

b)

weight

c)

matter

d)

grams

31.

the distance an object travels per unit of time

a)

speed

b)

velocity

c)

acceleration

d)

displacement

32.

A small steel ball is dropped from a low balcony. Ignoring air resistance, which statement describes its motion?

a)

It falls with decreasing acceleration.

b)

It falls with constant acceleration.

c)

It falls with decreasing speed.

d)

It falls with constant speed.

33.
a)

10 m

b)

20 m

c)

100 m

d)

200 m

34.
a)

A

b)

B

c)

C

d)

D

35.
a)

A

b)

B

c)

C

d)

D

36.

What is Uniform motion?

a)

when a body travels through unequal distances in intervals of time

b)

when a body travels the same distances in intervals of time

c)

when a body travels equal distances in intervals of time

d)

None of the above

37.

______________ is the total length of the actual path covered by a moving object irrespective of its direction.

a)

Displacement

b)

Distance

c)

Motion

d)

Direction

38.

_____________ motion is also called as linear motion.

a)

Curvilinear motion

b)

Translatory motion

c)

Rectilinear motion

39.

Which of the following statement is correct regarding velocity and speed of a moving body?

a)

Velocity of a moving body is always higher than its speed

b)

Speed of a moving body is always higher than its velocity

c)

Speed of a moving body is its velocity in a given direction

d)

Velocity of a moving body is its speed in a given direction

40.

When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:

a)

+ 2 m/s2

b)

− 2 m/s2

c)

− 0.5 m/s2

d)

+ 0.5 m/s2

41.

The speed - time graph of a car is given here. Using the data in the graph calculate the total distance covered by the car.

a)

1250 m

b)

875 m

c)

1500 m

d)

870 m

42.

A car of mass 1000 kg is moving with a velocity of 10 m/s. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of 25 s will be:

a)

40 m/s

b)

25 m/s

c)

10 m/s

d)

250 m/s

43.

From the given v-t graph, it can be inferred that the object is

a)

At rest 

b)

In uniform motion 

c)

Moving with uniform acceleration 

d)

In non-uniform motion 

44.

A player completes a circular path of radius r in 40 s. At the end of 2 minutes 20 seconds. Displacement will be:

a)

7πr

b)

Zero

c)

2r

d)

2πr

45.
In the absence of air friction, the horizontal component of a projectile's velocity doesn't change as the projectile moves. 
a)
True
b)
False
c)
Sometimes true
d)
Sometimes false
46.
In the absence of air resistance, the angle at which a thrown ball will do the farthest is
a)
15o
b)
300
c)
45o
d)
600
47.
Which best approximates the resultant of a pair of 6-unit vectors at right angles to each other? 
a)
0
b)
6
c)
8
d)
12
48.
What is the resultant of a 3-unit vector and a 4-unit vector at right angles to each other? 
a)
1
b)
5
c)
7
d)
9
49.
At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first? 
a)
Neither- they hit at the same time
b)
the horizontally thrown ball
c)
the dropped ball
d)
None of these
50.

State the impulse-momentum theorem.

a)

The impulse-momentum theorem states that the change in momentum of an object is equal to the impulse applied to it.

b)

The impulse-momentum theorem states that momentum is conserved in all collisions.

c)

The impulse-momentum theorem states that the change in momentum of an object is equal to the force applied to it.

d)

The impulse-momentum theorem states that the impulse applied to an object is inversely proportional to its momentum.

51.

How does impulse relate to the change in momentum of an object?

a)

Impulse is inversely proportional to the change in momentum of an object.

b)

Impulse is greater than the change in momentum of an object.

c)

Impulse is not related to the change in momentum of an object.

d)

Impulse is equal to the change in momentum of an object.

52.

What is the formula to calculate the horizontal distance traveled by a projectile?

a)

horizontal distance = initial velocity * time * secant(angle)

b)

horizontal distance = initial velocity * time * cosine(angle)

c)

horizontal distance = initial velocity * time * sine(angle)

d)

horizontal distance = initial velocity * time * tangent(angle)

53.

Define impulse in the context of momentum.

a)

Impulse is the product of force and time.

b)

Impulse is the result of dividing momentum by time.

c)

Impulse is the change in kinetic energy of an object.

d)

Impulse is the product of mass and acceleration.

54.

What is the relationship between impulse and change in momentum?

a)

Impulse is equal to velocity.

b)

Impulse is equal to the change in momentum.

c)

Impulse is inversely proportional to change in momentum.

d)

Impulse is not related to change in momentum.

55.

Calculate the impulse experienced by an object if its momentum changes from 20 kg m/s to 40 kg m/s in 5 seconds.

a)

10 kg m/s

b)

20 kg m/s

c)

30 kg m/s

d)

50 kg m/s

56.

What is the difference between elastic and inelastic collisions in terms of momentum conservation?

a)

In elastic collisions, kinetic energy is conserved.

b)

In inelastic collisions, kinetic energy is conserved.

c)

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, only momentum is conserved while kinetic energy is not.

d)

In elastic collisions, momentum is not conserved.

57.

What is the definition of the gravitational field?

a)

A region around a massive object where the force of gravity can be detected

b)

A region around a planet where electromagnetic waves are present

c)

A region around a star where nuclear reactions occur

d)

A region around a black hole where light cannot escape

58.

Which planet is closest to the Sun and has extreme temperatures with no atmosphere?

a)

Venus

b)

Earth

c)

Mars

d)

Mercury

59.

What is the force of attraction between two point masses proportional to?

a)

The square of the distance between them

b)

The cube of the distance between them

c)

The mass of only one of the point masses

d)

The velocity of the point masses

60.

Which law of planetary motion states that planetary orbits are elliptical in shape?

a)

Newton's Law of Universal Gravitation

b)

Kepler's Third Law

c)

Kepler's Second Law

d)

Kepler's First Law

61.

What is the gravitational potential energy dependent on?

a)

The mass of the object and the distance from the Sun

b)

The mass of the object and the height above the ground

c)

The speed of the object and the atmospheric pressure

d)

The color of the object and the time of day

62.

Which planet is known for its strong greenhouse effect and high surface temperature?

a)

Mercury

b)

Earth

c)

Venus

d)

Mars

63.

What is the gravitational constant denoted by in the equation for gravitational force?

a)

G

b)

M

c)

R

d)

F

64.

Which planet is the second-largest gas giant with a ring system made up of ice and rock particles?

a)

Jupiter

b)

Saturn

c)

Neptune

d)

Uranus

65.

What is the unit of measurement for gravitational field strength?

a)

Meters per second

b)

Newtons per kilogram

c)

Joules per kilogram

d)

Kilograms per meter

66.

Which law of planetary motion states that planets sweep out equal areas in equal times?

a)

Newton's Law of Universal Gravitation

b)

Kepler's Second Law

c)

Kepler's First Law

d)

Kepler's Third Law

67.

What is the work done in raising a mass from the ground surface to a height above the ground?

a)

P=VI

b)

E=mc^2

c)

F=ma

d)

mgh

68.

Which planet is known for its stormy atmosphere and the Great Red Spot?

a)

Mars

b)

Jupiter

c)

Saturn

d)

Neptune

69.

What is the unit of measurement for gravitational potential?

a)

Kilograms per meter

b)

Joules per kilogram

c)

Newtons per kilogram

d)

Meters per second

70.
If you double the mass of both m1 and m2, by what factor will the gravitational force change?
a)
F/4
b)
4F
c)
16F
d)
F/16
71.

Geosynchronous orbits take ______ to complete a full cycle.

a)

24 hours

b)

12 hours

c)

48 hours

d)

36 hours

72.
Which of the following is Newton's Law on Gravitation?
a)
F=Gm1m2/r
b)
F = Gm1m2/r2
c)
F = Gm1m2/2r
d)
F = m1m2/2r
73.

The work done per unit mass in bringing a small test mass from infinity to the point.

a)

Gravitational force

b)

Gravitational field

c)

Gravitational field strength

d)

Gravitational potential at a point

74.

Force exerted per unit mass acting on a small test mass place at that point.

a)

Gravitational force

b)

Gravitational field

c)

Gravitational field strength

d)

Gravitational potential at a point

75.

What is the Equation for Momentum?

a)

Momentum = Mass x Velocity

b)

Momentum = Mass / Velocity

c)

Momentum = Velocity / Mass

76.

What is the Equation for a Moment of a Force?

a)

Moment of a Force = Force x Distance

b)

Moment of a Force = Force / Distance

c)

Moment of a Force = Distance / Force

77.

What is the Equation for Weight?

a)

Weight = Mass x Gravitational Field Strength

b)

Weight = Mass / Gravitational Field Strength

c)

Weight = Gravitational Field Strength / Mass

78.

A 3.0 kg block starts from rest at the top of a 300 incline and slides 2.0 m, measured along the incline, in 1.5 s. Is normal force on the block

a)

Greater than 30 N

b)

Less than 30 N

c)

Equal to 30 N

79.

A car rounds a curve at constant speed. If the car's speed doubles, the net force on the car is multiplied by a factor of

a)

one fourth

b)

one half

c)

the net force does not change

d)

two

e)

four

80.

A satellite of mass m orbits a moon of mass M in uniform circular motion with a constant tangential speed of v.


The gravitational field strength at a distance R from the center of moon is g. The satellite is moved to a new circular orbit that is 2R

from the center of the moon. What is the gravitational field strength of the moon at this new distance?

a)

g/4

b)

g/2

c)

2g

d)

4g

81.

A 2 kg object is a distance of 10,000,000 m away from the center of Earth, which has a mass of nearly 6×10^24 kg. What is the approximate gravitational field strength of Earth’s gravitational field at the location of the 10 kg object?

a)

2 N/kg

b)

4 N/kg

c)

10 N/kg

d)

The gravitational field strength is negligible and, therefore approximately zero.

82.

What is the direction of the centripetal acceleration for a mass whirled on a string in a vertical circle, when the mass is a the bottom of the circle?

a)

Up

b)

Down

c)

Left

d)

Right

e)

In the direction that the mass is moving

83.

If the object is doubled in mass, how does the escape velocity change?

a)

By a factor of square root of 2

b)

By a factor of 2

c)

By a factor of 1/2

d)

It doesn't change

84.

Gravitational potential energy, 𝑈 stored in a test mass 𝑚 placed at a distance 𝑟 from the center of planet 𝑀 is defined as the ____________ by gravitational force in bringing a test mass from infinity to that point.

a)

energy

b)

power

c)

velocity

d)

work done

85.
The minimum velocity required to leave the atmosphere is called the...
a)
orbital velocity
b)
ejection velocity
c)
terminal velocity
d)
escape velocity
86.

What is meant by a quantity having an inverse-square relationship with distance?

a)

The quantity is proportional to the reciprocal of the square of a distance.

b)

The quantity is not proportional to the square of the distance.

c)

The quantity is proportional to the reciprocal of the square root of a distance.

d)

The square of the quantity is proportional to the reciprocal of a distance.

87.
John walks 5 km east, and then turns around and walks 8 km west. What is John's displacement?
a)
3 km; East
b)
3 km; West
c)
13 km; East
d)
13 km; West
88.
Which of the following is a vector?
a)
Distance
b)
Speed
c)
Time
d)
Velocity
89.
Which of the following is a unit of acceleration?
a)
km/s
b)
meters
c)
m/s2
d)
seconds
90.
During what interval is the car's velocity zero?
a)
A
b)
B
c)
C
d)
D
91.
During what interval is the car accelerating?
a)
A
b)
B
c)
C
d)
D
92.

A student is asked to solve the following problem:


An object is thrown upwards with a speed of 25 m s-1. How high will it be when the speed is 12 m s-1 ?


Which equation will allow the problem to be solved in a SINGLE calculation?

a)

s=ut+12at2s=ut+\frac{1}{2}at^2

b)

s=(u+v)t2s=\frac{\left(u+v\right)t}{2}

c)

v=u+atv=u+at

d)

v2=u2+2asv^2=u^2+2as

93.

In which direction does centripetal force act in a rotating object?

a)

Toward the outer edge of the object

b)

In the opposite direction of the rotation

c)

Away from the center of rotation

d)

Towards the center of rotation

94.

What factors affect the range of a projectile?

a)

Projectile weight, launch sound, humidity

b)

Projectile shape, launch location, time of day

c)

Initial velocity, launch angle, air resistance, and gravitational force

d)

Wind speed, temperature, projectile color

95.

Two projectiles are fired horizontally from the same height but with different velocities as shown in the picture. Which one will travel farther before hitting the ground?

a)

The one on the left.

b)

The one on the right

c)

They will hit at the same time.

96.

Once a projectile is launched, what is the only force that affects its motion?

a)

mass

b)

friction

c)

inertia

d)

gravity

97.

A projectile is launched with 45m/s at an angle 30o above the horizontal. What is the Vx when the projectile hits the ground.

a)

22.5 m/s

b)

35.7 m/s

c)

39 m/s

d)

45 m/s

98.
A projectile is launched at an angle of 45o with a velocity of 250 m/s. If air resistance is neglected, the magnitude of the horizontal velocity of the projectile at the time it reaches maximum altitude is equal to 
a)
0 m/s
b)
175 m/s
c)
200 m/s
d)
250 m/s
99.

Two identical balls, X and Y, are at the same height and a horizontal distance of 25 cm apart.

X is projected horizontally with a velocity of 0.10 m s–1 towards Y at the same time that Y is released from rest. Both X and Y move freely in the absence of air resistance.

What is the distance between the balls 1.0 s later?

a)

0.15 m

b)

0.25 m

c)

2.4 m

d)

4.9 m

100.

A projectile is launched with a speed of 25 m s–1 at an angle of 35° to the horizontal, as shown in the diagram.

Air resistance is negligible.

What is the time taken for the projectile to return to the ground?

a)

1.5 s

b)

2.1 s

c)

2.9 s

d)

4.2 s

101.

A golf ball was hit from the surface of the Moon. The time of flight was 4.0 s.

What is the best estimate for the maximum height reached by the ball?

acceleration due to gravity on the Moon = 1.6 m s–2

a)

3 m

b)

15 m

c)

40 m

d)

80 m

102.

What force acts on a projectile in the horizontal direction?

a)

air resistance

b)

gravity

c)

tension

d)

none of the above

103.

You kick a baby seal off a 19.6 m high hill and it lands a distance of 12.0 m from the edge of the hill. What is the vertical displacement? No math required.

a)

19.6 m

b)

12.0 m

c)

7.6 m

d)

4.9 m

104.

The diagram shows parabolic projectile motion. The object is launched at A. The object impacts the ground at G.


At which position or positions is the projectile slowing in the down direction?

a)

Position G

b)

Position E & F

c)

Positions E, F, & G.

d)

At no positions.

105.

What is the "path" of the projectile as it flies through the air?

a)

Range, x

b)

Height, ∆y

c)

Time of flight, t

d)

Trajectory

106.
Centripetal acceleration acts towards the ___________ of the circular motion
a)
center
b)
circumference
c)
outside
d)
radius
107.
Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.
a)
2.4 m/s
b)
3.6 m/s
c)
3.9 m/s
d)
4.2 m/s
108.
Which of the following depict the speed of the blowing ball?
a)
A
b)
B
c)
C
d)
D
109.
What object experiences uniform circular motion?
a)
A car speeding up as it turns left
b)
A car traveling around a roundabout at a constant speed
c)
A car slowing down as it crests a tall hill
d)
A car traveling down the road at a constant speed
110.
Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.
a)
10 N
b)
20 N
c)
30 N
d)
40  N
111.

Given an expression of a SHM

x = 10 sin (11.4t). Calculate the time taken when x=10 cm for the 1st time

a)

0.138 s

b)

1.24 s

c)

11.11 s

d)

0.79 s

112.
What is the equation for frequency?
a)
f = t/n
b)
f = 1/T
c)
f = 2 T
113.

Based on your findings, which equation could best describe the pendulum’s period?

a)

A

b)

B

c)

C

d)

D

114.

When is the pendulum at maximum velocity

a)

At its lowest point

b)

At its highest point

c)

It moves at a constant velocity

d)

It is at rest

115.

What is the definition of SHM?

a)

periodic motion without loss of energy in which the acceleration of a body is directly proportional to its displacement and is directed towards the equilibrium position but in opposite direction of the displacement.

b)

periodic motion without loss of energy in which the acceleration is directly proportional to its velocity and is directed towards the equilibrium position but in opposite direction of the velocity.

c)

periodic motion without loss of energy in which the acceleration of a body is inversely proportional to its displacement

d)

periodic motion without loss of energy in which the angular frequency is directly proportional to its displacement and is directed towards the equilibrium position but in opposite direction of the displacement.

116.

The number of cycles or oscillation made in one second is defined as

a)

time taken

b)

period

c)

frequency

d)

amplitude

117.
For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?
a)
amplitude
b)
period
c)
frequency
d)
revolution

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