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Physics Unit and measurement

Total questions: 67

Worksheet time: 46mins

Name
Class
Date
1.

The standard unit of time is (a)  

2.

A kilometre = ------- metres

a)

1000

b)

100

c)

10

3.

Quantities which are measurable are called ________ quantities.

a)

Motion

b)

Physical

c)

Measurement

d)

Gravity

4.

Standard Unit of Mass is (a)   . (First Letter should be Capital and write full form.)

5.

Every measurement consits of.....

a)

A number

b)

A unit

c)

Unit and number both

d)

Time

6.

Which of the following is not a unit of distance?

a)

Metre

b)

Feet

c)

Kilogram

d)

Kilometre

7.

What is the correct measurement of the red thread on the scale as given above:

a)

1.5 cm

b)

1.9 cm

c)

2.4 cm

d)

3.4 cm

8.

The distance between the stars is measured in:

a)

Kilometres

b)

metres

c)

Light years

d)

cm

9.

Kelvin is the S.I unit of

a)

Length

b)

Time

c)

Temperature

d)

Mass

10.

What are the three basic units of a metric system?

a)

inch, yard, cm

b)

feet, inch, m

c)

yard, feet, km

d)

m, kg, s

11.

Name the unit which measures the thickness of a book page.

a)

m

b)

km

c)

cm

d)

mm

12.

Measurement of length can be done with:-

a)

Clock

b)

Metre Scale

c)

Measuring Tape

d)

Pendulum Clock

13.

Smallest unit of length is....

a)

Km

b)

mm

c)

cm

d)

m

14.
What 2 units can be used when measuring volume? 
a)
cubic meters and liters
b)
grams and seconds
c)
milliliters and centimeters
d)
cubic centimeters and kelvin
15.
What is the SI unit for mass?
a)
kilograms 
b)
meters
c)
pounds
d)
liters
16.
What is weight?
a)
a measure of the force of gravity acting on an object
b)
a measure of the amount of matter an object contains
c)
the amount of space an object takes up
d)
don't ask me that, I'm sensitive
17.
How do you calculate density?
a)
mass divided by volume
b)
volume divided by mass
c)
mass times volume
d)
very carefully
18.
How do you calculate the volume of a rectangular solid?
a)
length x width x height
b)
mass divided by volume
c)
with a triple beam balance
d)
it's impossible
19.
What will never change, wherever you are in the universe?
a)
mass
b)
weight
20.
What is the volume of the battery?
a)
17 cm3
b)
5 cm3
c)
22 cm3
d)
24 ml
21.
Tool used to measure MASS
a)
Metric Ruler
b)
Triple Beam Balance
c)
Graduated Cylinder
d)
Thermometer
22.

What is the name of these objects?

a)

metric ruler

b)

Celsius thermometer

c)

graduated cylinders

d)

pan balances

23.
mg, g, kg
a)
SI unit for mass
b)
SI unit for liquid volume
c)
SI unit for solid volume
d)
SI unit for length
24.
degrees C
a)
SI unit for mass
b)
SI unit for liquid volume
c)
SI unit for solid volume
d)
SI unit for temperature
25.
Which of the following is a derived quantity:
a)
Length
b)
Time
c)
Current
d)
Pressure
26.

What is the correct symbol and SI unit for force

a)

F and si unit: Pa

b)

F and SI unit: N

c)

W and SI unit: Nm

d)

F and SI unit:N/m

27.

There are examples of base quantity EXCEPT

a)

Time

b)

Length

c)

Velocity

d)

Electric current

28.

Base quantity is a physical quantity which cannot be derived from another physical quantity

a)

TRUE

b)

FALSE

29.

A train departs from Delhi railway station at 21:50 hours.What will be the time shown in your analogue watch at the departure ?

a)

2:50 am

b)

09:50 pm

c)

09:50 am

d)

11:50 pm

30.

Significant figures of 100 is

a)

1

b)

2

c)

3

d)

4

31.

Rounded off of 1019.55 x 10⁵ upto 5 digits

a)

1019.6

b)

1019.5

c)

1019.4

d)

None

32.

Significant figures of 0.00080 m² is

a)

1

b)

2

c)

5

d)

4

33.

Round off of 142667 upto 5 digits is

a)

14266

b)

14267

c)

142670

d)

None

34.

Multiplication of 6 and 2 is

a)

1

b)

12

c)

0

d)

10

35.

Significant figures of 00.000 is

a)

2

b)

3

c)

5

d)

1

36.
Which group of measurements is the most precise? (Each group of measurements is for a different object.)
a)
2 g, 3 g, 4 g
b)
2.0 g, 3.0 g, 4.0 g
c)
2 g, 2.5 g, 3 g
d)
1 g, 3 g, 5 g
37.

The which is dimensionless is -

a)

Charge

b)

Frictional Force

c)

Density

d)

Refractive Index

38.

The Unit length, velocity and force are doubled. Which of the following is the correct change in the other unit?

a)

Unit of time is doubled

b)

Unit of mass is doubled

c)

Unit of momentum is doubled

d)

Unit of energy is doubled

39.

If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be

a)

2%

b)

4%

c)

6%

d)

8%

40.

The pair of quantities having same dimensions is

a)

Young's modulus and Energy

b)

Impulse and Surface Tension

c)

Angular momentum and Work

d)

Work and Torque

41.

The dimension of universal gravitational constant are

a)

[M-1L3T-2]

b)

[ML2T-1]

c)

[M-2L3T-2]

d)

[M-2L2T-1]

42.

The plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the,

a)

Refractive index of a material

b)

Focal length of the lens

c)

Radius of curvature of the curved surface

d)

Aperture of the lens

43.

Which of these quantities is scalar quantity?

a)

Gravitational acceleration

b)

Impulsive force

c)

Distance

d)

Weight

44.

Diagram shows graph of volume, V against temperature, T.

Which statement is correct about the graph?

a)

Volume increases linearly to temperature

b)

Volume is directly proportional to temperature

c)

Volume increases linearly to absolute temperature

d)

Volume is inversely proportional to absolute temperature

45.

Which of the following is a physical quantity?

a)

Shape of lens

b)

Weight

c)

Type of liquid

d)

Brightness of bulb

46.

Which of the following physical quantities is a derived quantity?

a)

Weight

b)

Temperature

c)

Electric current

d)

Mass

47.

Which graph shows T2 is inversely proportional to k?

a)

A

b)

B

c)

C

d)

D

48.

Which one is the base quantity?

a)

speed

b)

time

c)

weight

d)

force

49.

What is the SI unit for temperature?

a)

Celcius

b)

Kelvin

c)

Fahrenheit

d)

Newton

50.

What is the difference between scalar quantity and vector quantity?

a)

scalar has magnitude while vector has direction

b)

scalar has magnitude and direction

c)

both has magnitude

d)

scalar has magnitude while vector has both magnitude and direction

51.

Which one is the graph of directly proportional?

a)

a

b)

b

c)

c

d)

d

52.

Which of the following quantity is base quantity?

Antara berikut, yang manakah adalah kuantiti asas?

a)

Potential difference / Beza keupayaan

b)

Mass / Jisim

c)

Momentum

d)

Electric power / Kuasa elektrik

53.

Which of the following is scalar quantity?

Antara berikut, yang manakah kuantiti skalar?

a)

Velocity / Halaju

b)

Displacement / Sesaran

c)

Speed / Laju

d)

Force / Daya

54.

Time, mass, and energy are ......

Masa, jisim, dan tenaga adalah .....

a)

base quantity / kuantiti asas

b)

scalar quantity / kuantiti skalar

c)

vector quantity / kuantiti vektor

d)

derived quantity / kuantiti terbitan

55.
What is the symbol for time?
a)
s
b)
hours
c)
t
d)
x
56.

Which of the following is a vector quantity?

a)

Energy

b)

Force

c)

Mass

d)

Speed

57.

___________________ is defined as the study of relationship between matter and energy.

a)

Kinetics

b)

Physics

c)

Biology

d)

Geology

58.
A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  
a)
40 metres, South
b)
50 metres, South
c)
50 metres, North
d)
40 metres, North 
59.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
60.
In practice A of the figure, What is  the magnitude of the  resultant displacement?
a)
5 km 
b)
8 km
c)
11 km
d)
15 km
61.

In practice A of the figure, what is the direction of the resultant displacement?

a)

63 degrees west of North

b)

63 degrees north of West

c)

27 degrees north of West

d)

27 degrees south of West

62.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
63.
If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?
a)
12 km
b)
19 km, East
c)
31 km
d)
43 km, East
64.

The _______ of two or more vectors is the sum of the vectors.

a)

components

b)

scalar

c)

resultant

d)

magnitude

65.
What is the net force?
100 N        230 N
<------        --------->
a)
30 N to the right
b)
230 N to the right
c)
130 N to the right
d)
This is a balanced force
66.

What is the x component of the vector given in the diagram?

a)

50N

b)

87N

c)

60N

d)

120N

67.

What is the y component of the vector given in the diagram?

a)

100N

b)

50N

c)

87N

d)

60N

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