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Practice questions for Physics exam

Total questions: 85

Worksheet time: 2hrs 8mins

Name
Class
Date
1.

Convert this number into scientific notation: 0.068

a)

6.9 x 101

b)

6.8 x 10-1

c)

6.8 x 10-2

d)

6.8 x 102

2.

When using scientific notation, a positive exponent means ...

a)

the standard number is greater than one

b)

the standard number is less than one

c)

the negative sign doesn't have a meaning

d)

None of the above

3.

Convert this number into scientific notation: 950,000

a)

9.5 x 105

b)

9.5 x 10-6

c)

9.5 x 106

d)

9.5 x 10-5

4.

Which number is the least in value

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

5.
Write 7.113 x 107 in standard form.
a)
71,130,000
b)
7,113,000
c)
0.0000007113
d)
7,113
6.

DEKA

a)

10^1

b)

10^2

c)

10^5

d)

10^4

7.

1012

a)

tera

b)

pico

c)

giga

d)

nano

8.
Which of these items is ordered correctly, smallest to largest?
a)
giga, kilo, mega, tera 
b)
kilo, giga, mega, tera
c)
kilo, mega, giga, tera 
d)
tera, giga, kilo, mega 
9.

7.3mm equals

a)

7.3 x 10-5 m

b)

7.3 x 103 m

c)

7.3 x 10-3 m

d)

7.3 x 10-6 m

10.

 2.6μΩ equals2.6\mu\Omega\ equals  

a)

 2.6×10−6  Ω2.6\times10^{-6}\ \ \Omega  

b)

 2.6×10−9  Ω2.6\times10^{-9}\ \ \Omega  

c)

 2.6×10−8  Ω2.6\times10^{-8}\ \ \Omega  

d)

 2.6×10−10  Ω2.6\times10^{-10}\ \ \Omega  

11.

Which is a not a fundamental quantity here?

a)

length

b)

area

c)

mass

d)

time

12.

The SI unit of time is

a)

hour

b)

second

c)

minute

d)

days

13.

The fundamental physical quantity involved in calculating volume is

a)

length

b)

mass

c)

time

d)

current

14.

In which way the physical quantities are expressed?

a)

magnitude only

b)

unit only

c)

numbers and unit

d)

magnitude and numbers

15.

Which of the following is NOT the example of physical quantities?

a)

the mass of a stone

b)

the speed of a car

c)

the depth of the ocean

d)

the power of superhero

16.

Which of the following quantities is NOT a fundamental quantity?

a)

the length of a running track

b)

the power generated by car engine

c)

the mass of a boy

d)

the temperature of the Sun

17.

Which of the following is the example of base quantity?

a)

the height of a mountain

b)

the area of a soccer field

c)

the volume of a water tank

d)

the weight of an apple

18.

Which of the following is the correct pair of derived quantity and its SI BASEunits?

a)

temperature - Celsius

b)

speed - m s-1

c)

volume - Litre

d)

area - cm2

19.

Force has a SI base units of kg m s-2.

Area has a SI base units of m2.


What is the SI base units of pressure?

(pressure = force / area)

a)

kg m-2 s-2

b)

kg m-1 s-2

c)

kg m2 s-2

d)

kg m3 s-2

20.

Mass has a SI unit of kg.

Gravitational acceleration has a SI base units of m s-2.

Height has a SI unit of m.


What is the SI base units of gravitational potential energy?

(gravitational potential energy = mass x grav. acceleration x height)

a)

kg m-2 s-2

b)

kg m-1 s-2

c)

kg m2 s-2

d)

kg m3 s-2

21.

Which one of the following is the derived unit?

a)

speed

b)

length

c)

mass

d)

luminous intensity

22.

What is SI unit of electric current?

a)

second

b)

watt

c)

ampere

d)

kilogram

23.

What tool would you use to measure this real life object?

a)

measuring tape

b)

yardstick

c)

ruler

d)

measuring cup

24.

All of the following can be used to measure time except

a)

vernier caliper

b)

simple pendulum

c)

hourglass

d)

candle stick

25.

Identify the apparatus in the picture shown

a)

Ruler

b)

Tape

c)

Micrometer

d)

Vernier Caliper

26.

When we're talking about a pendulum, what does T stand for?

a)

pi

b)

period

c)

length

d)

gravity

27.

As a pendulum gets longer, what happens to the period?

a)

doesn't change

b)

decreases

c)

increases

d)

fluctuates

28.

What is the name of the mass on a pendulum?

a)

ion

b)

graviton

c)

oscillating mass

d)

bob

29.

Which would have the longest period?

Pendulum A: A 200-g mass attached to a 1.0-m length string

Pendulum B: A 400-g mass attached to a 0.5-m length string

Pendulum C: A 200-g mass attached to a 0.5-m length string

a)

A

b)

B

c)

Same

d)

C

30.

The number of cycles that are completed per second is called the _ and is measured in _.

a)

frequency, cycles/second

b)

wavelength, meters

c)

amplitude, meters

d)

period, seconds

31.

Which of the following affects the period of a pendulum?

a)

What planet you're on

b)

What material is used to make the pendulum

c)

Which direction the pendulum starts swinging

d)

The frequency of the mass weight force grams

32.

What is the period of a pendulum

a)

how many times the pendulum swings before it stops

b)

how many times the pendulum passes a point in one second

c)

one complete cycle (complete to and fro motion)

d)

one complete cycle bouncing up and down

33.

What is the unit for the period of a pendulum?

a)

second

b)

meter

c)

m/s/s

d)

Newton

34.

A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.

a)

2 sec

b)

12 sec

c)

8 sec

d)

10 sec

35.

A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet. What is the gravity of the Unknown Planet?

a)

9.8

b)

3.4

c)

1.7

d)

Greater than 9.8

36.

The correct order showing one complete oscillation of the pendulum is:

a)

AC, CA, AB

b)

BC, CA, AB

c)

AB, BA, AC

d)

AC, CB, BA

37.

The to and fro motion of a simple pendulum is called a

a)

Rectilinear

b)

Oscillation

c)

Circular

d)

Rotational

38.

A simple pendulum takes 30s to complete 18 oscillations. What is the time period of the pendulum?

a)

54s

b)

48 s

c)

0.6s

d)

1.66 s

39.

The time period of a simple pendulum is 1.6 s. Find the total time taken by it in 28 oscillations.

a)

448 s

b)

44.8 s

c)

4.48 s

d)

17.5s

40.

If testing how temperature of water affects the speed of rusting, what is the Manipulated Variable?

a)

Temperature of water

b)

Type of liquid

c)

Speed of rusting

d)

Type of nail

41.

What is a Manipulated Variable?

a)

The variable you test by changing it

b)

Something you could change but don't

c)

The results/what you measure

d)

Something you hold constant in the experiment

42.

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The controlled variable is the _____.

a)

Diameter of the ball

b)

Force acting on the ball

c)

Height that the ball bounces

d)

Height from which the ball is dropped

43.

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The responding variable is the _____.

a)

Diameter of the ball

b)

Force acting on the ball

c)

Height that the ball bounces

d)

Height from which the ball is dropped

44.

How much force is needed to accelerate a 3kg skateboard at 5m/s2.

a)

8N

b)

1.6N

c)

0.6N

d)

15N

45.
If you increase the force on an object, its acceleration? 
a)
decreases
b)
stays the same
c)
also increases
d)
stops
46.
What is the magnitude (size) and direction of the net force?
a)
10 N to the Right
b)
10 N to the Left
c)
0 N
d)
8 N to the Left
47.

What is the mass of an object if a force of 34 N produces an acceleration of 4 m/s2?

a)

9kg

b)

8.5kg

c)

8kg

d)

7.5kg

48.
A net force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2.  What is the mass of the object?
a)
50 kg
b)
245 kg
c)
.02 kg
d)
25.5 kg
49.

What is the gradient of this slope

a)

5

b)

5/2

c)

5/3

d)

-5/3

50.

What is the gradient of this line

a)

4

b)

4/5

c)

-2

d)

-1/2

51.
Which of these lines has a negative gradient?
a)
The orange one
b)
The red one
c)
The blue one
d)
The green one
52.

What is unit for Moments

a)

nm

b)

NM

c)

Nm

d)

Nm2

53.

Calculate the density of the stone

(5 marks)

4 lines
54.

Calculate the gradient of the following graph and determine the y-intercept. (5 Marks)

4 lines
55.

The simple pendulum of length 15cm, completed 10 complete swings in 12s.

a) What is its period (3 marks)

b) How would your answer in a) change if the length was changed to 18 cm (2 marks)

4 lines
56.

Two siblings, Anna and Bryan, are fighting over a toy. Anna is pulling the toy with a force of 2 N and Bryan is pulling the toy with a force of 3 N. What is the resultant of the forces?

a)

1 N to Bryan   

b)

2 N to Anna

c)

2 N to Bryan

d)

3 N to Bryan

57.

Which of the following statements is not true?

a)

The SI unit of distance and displacement is m.

b)

The SI unit of speed and velocity is m/s.

c)

An object can be moving for one hour and still have zero displacement.

d)

An object can be moving for one hour and still have zero distance.

58.

A truck takes 10 s to travel the first 50 m and another 40 s to travel a further 100 m. What is the average speed of the truck?

a)

3 m/s

b)

5 m/s

c)

15 m/s

d)

30 m/s

59.

36 km/h is equal to....

a)

10 m/s

b)

13 m/s

c)

60 m/s

d)

72 m/s

60.

Distance moved per unit time is….

a)

Displacement

b)

Speed

c)

Velocity

d)

Acceleration

61.

Rate of change of displacement is….

a)

Distance

b)

Speed

c)

Velocity

d)

Acceleration

62.

One of the following is not a vector.

a)

Displacement

b)

Speed

c)

Velocity

d)

Acceleration

63.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
64.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
65.
What is the unit for momentum?
a)
m/sec
b)
kg/sec
c)
kg/m
d)
kg m/sec
66.

When the speed of an object is doubled, its momentum _?_.

a)

remains unchanged, per the law of conservation of momentum

b)

doubles, because they are directly proportional

c)

quadruples

d)

is cut in half, because they are inversely proportional

67.

The variable p stands for _________________.

a)

motion

b)

momentum

c)

impulse

d)

force

68.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)

Resultant Force

69.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
70.

Rank the following from most to least momentum?


a = a cheetah with a mass of 67 kilograms running at a speed of 52 m/h


b = a bighorn sheep with a mass of 136 kilograms running at a speed of 18 m/h


c = a chimpanzee running at a speed of 25 m/h that has a mass of 54 kilograms

a)

a, b, c

b)

a, c, b

c)

b, a, c

d)

b, c, a

e)

c, b, a

71.

What is another name for the "EVENT" when two objects collide in a collision?

a)

impulse

b)

force

c)

action

d)

reaction

72.
If two objects have the same mass, then the faster moving object has ____________ momentum.
a)
more 
b)
less
c)
the same
73.
How can a tennis ball and a bowling ball have the same momentum?
a)
have the same speed
b)
have different speeds
c)
one is moving backwards
d)
they can't
74.

Which one of these objects has the greater amount of momentum?

a)

A turtle that slowly crosses a road

b)

A parked car

c)

A stop sign

75.

A 5kg ball has a momentum of 30 kg*m/s. What is the speed of the ball

a)

150 m/s

b)

35 m/s

c)

6 m/s

d)

5 m/s

76.
A 0.250 kg cart moving at 0.400 m/s has how much momentum?
a)
0.1 kg-m/s
b)
1 kg-m/s
c)
10 kg-m/s
d)
100 kg-m/s
77.
What is the momentum of a charging rhino?
a)
2 × 10² kg⋅m/s
b)
3 × 10² kg⋅m/s
c)
2 × 10⁴ kg⋅m/s
d)
3 × 10⁴ kg⋅m/s
78.

Which object likely has the most momentum?

a)

car driving near a school

b)

car driving on the freeway

c)

car that is parking

d)

car driving in the city

79.

If an object has a velocity of 15 m/s and a momentum of 30 kgm/s, what is its mass?

a)

450 kg

b)

2 kg

c)

4500 kg

d)

0.5 kg

80.

Which of the following has the MOST momentum if they're all traveling at the same speed?

a)

rolling ping-pong ball

b)

rolling bowling ball

c)

rolling soccer ball

d)

they would all have the same momentum

81.

Why does a semi truck have more momentum than a car if they are both traveling at 60kph?

a)

Truck is more massive

b)

Truck is less massive

c)

Car is moving faster

d)

Car is more massive

82.

Momentum for an object at rest is 0.

a)

True

b)

False

83.
Determine the momentum of 1000-kg car moving northward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
84.
The momentum of a truck traveling in a straight line at 25 m/s is 37,500 kg m/s. What is the truck's mass? 
a)
937,500 kg
b)
937,500 N
c)
1,500 N
d)
1,500 kg
85.
The definition of momentum is
a)
The size of an object
b)
The velocity of an object
c)
Mass in Motion
d)
A comparison between two objects

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