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WorksheetsGrade 7 Physics (3 chapters)
Total questions: 95
Worksheet time: 5hrs 45mins
Name
Class
Date
1.
Which of the following is a fundamental quantity?
a)
Area
b)
Volume
c)
Mass
d)
Speed
2.
The SI unit of time is:
a)
Minute
b)
Second
c)
Hour
d)
Millisecond
3.
Which of the following is a derived quantity?
a)
Length
b)
Temperature
c)
Density
d)
Mass
4.
How many fundamental quantities are there in the SI system?
a)
5
b)
6
c)
7
d)
8
5.
What is the SI unit of length?
a)
Centimeter
b)
Kilometer
c)
Meter
d)
Millimeter
6.
The formula for density is:
a)
Mass × Volume
b)
Mass ÷ Volume
c)
Volume ÷ Mass
d)
Mass + Volume
7.
Which of these is NOT a fundamental quantity?
a)
Luminous intensity
b)
Amount of substance
c)
Temperature
d)
Area
8.
What is the SI unit of electric current?
a)
Volt
b)
Ampere
c)
Ohm
d)
Coulomb
9.
Acceleration is defined as:
a)
Distance ÷ Time
b)
Change in speed ÷ Time
c)
Mass ÷ Volume
d)
Force × Distance
10.
Which system of measurement is used for fundamental quantities in science?
a)
CGS system
b)
FPS system
c)
MKS system
d)
SI system
11.
Physical quantities are quantities that:
a)
Cannot be measured
b)
Can be measured
c)
Are always derived quantities
d)
Have no units
12.
Area is a:
a)
Fundamental quantity
b)
Derived quantity
c)
Dimensionless quantity
d)
Base unit
13.
The SI unit of area is:
a)
m²
b)
m³
c)
cm²
d)
km²
14.
The amount of surface covered by a closed shape is called:
a)
Volume
b)
Density
c)
Area
d)
Perimeter
15.
Which of the following is NOT a correct unit for area?
a)
m²
b)
cm²
c)
km²
d)
m³
16.
The formula for calculating the area of a rectangle is:
a)
Length × Breadth
b)
Length × Height
c)
Length × Breadth × Height
d)
2 × (Length + Breadth)
17.
1 cm² is equal to:
a)
0.0001 m²
b)
0.01 m²
c)
0.1 m²
d)
0.001 m²
18.
1 hectare is equal to:
a)
100 m²
b)
1000 m²
c)
10,000 m²
d)
100,000 m²
19.
Which of the following shapes is used for measuring volume?
a)
Plane figure
b)
Solids (three dimensions)
c)
Circle
d)
Square
20.
If a square has each side of 8 cm, its area in m² is:
a)
0.0064 m²
b)
0.064 m²
c)
6.4 m²
d)
0.64 m²
21.
When we take equal volumes of sand and cotton, sand appears to be:
a)
Lighter
b)
Heavier
c)
Softer
d)
Larger
22.
The density of a substance is defined as its:
a)
Volume per unit mass
b)
Mass per unit volume
c)
Weight per unit volume
d)
Area per unit mass
23.
The SI unit of density is:
a)
g/cm³
b)
kg/m³
c)
m³/kg
d)
kg/cm³
24.
The CGS unit of density is:
a)
kg/m³
b)
g/cm³
c)
kg/cm³
d)
g/m³
25.
An iron nail sinks in water because it is:
a)
Heavier than water
b)
Lighter than water
c)
More dense than water
d)
Less dense than water
26.
A ship made of iron floats because:
a)
Iron is less dense than water
b)
It has hollow spaces filled with air
c)
It weighs less than water
d)
It is coated with waterproof material
27.
1 g/cm³ is equal to:
a)
100 kg/m³
b)
1000 kg/m³
c)
10,000 kg/m³
d)
1 kg/m³
28.
Osmium, the densest substance on Earth, has a density of about:
a)
2,250 kg/m³
b)
22,500 kg/m³
c)
225 kg/m³
d)
225,000 kg/m³
29.
The formula for density is:
a)
Mass × Volume
b)
Mass ÷ Volume
c)
Volume ÷ Mass
d)
Volume × Mass²
30.
If the mass of an object stays the same but its volume increases, its density will:
a)
Increase
b)
Decrease
c)
Stay the same
d)
Double
31.
The formula to calculate the area of a square is:
a)
Length × Width
b)
Side × Side
c)
Length × Height
d)
2 × (Length + Width)
32.
The area of a square with each side 12 cm is:
a)
124 cm²
b)
144 cm²
c)
120 cm²
d)
100 cm²
33.
The volume of a cube is calculated as:
a)
Side × Side
b)
Side × Side × Side
c)
Length × Width
d)
Length × Width × Height
34.
A cube with a side of 4 cm has a volume of:
a)
64 cm³
b)
16 cm³
c)
8 cm³
d)
32 cm³
35.
The formula for density is:
a)
Mass × Volume
b)
Volume ÷ Mass
c)
Mass ÷ Volume
d)
Weight × Volume
36.
An iron cube of length 1 cm and mass 7.8 g has a density of:
a)
7.8 g/cm³
b)
0.78 g/cm³
c)
78 g/cm³
d)
780 g/cm³
37.
If a piece of steel has a volume of 10 cm³ and a mass of 80 g, its density is:
a)
0.8 g/cm³
b)
8 g/cm³
c)
80 g/cm³
d)
0.08 g/cm³
38.
If the mass of a stone is 50 g and it displaces 30 mL of water, its density is:
a)
1.5 g/cm³
b)
15 g/cm³
c)
0.15 g/cm³
d)
5 g/cm³
39.
The SI unit of volume is:
a)
cm²
b)
m³
c)
m²
d)
cm³
40.
If the density of a material is 2000 kg/m³ and its volume is 5 m³, the mass is:
a)
1000 kg
b)
5000 kg
c)
10,000 kg
d)
200 kg
41.
Speed indicates how __________ an object is moving.
a)
Far or Near
b)
Fast or Slow
c)
Heavy or Light
d)
Large or Small
42.
Speed is defined as:
a)
Distance × Time
b)
Time ÷ Distance
c)
Distance ÷ Time
d)
Distance + Time
43.
The SI unit of speed is:
a)
km/h
b)
m/s
c)
cm/s
d)
km/s
44.
A car travels 120 km in 2 hours. Its speed is:
a)
60 km/h
b)
50 km/h
c)
40 km/h
d)
80 km/h
45.
A boy runs 400 m in 80 seconds. His speed in m/s is:
a)
8 m/s
b)
6 m/s
c)
5 m/s
d)
4 m/s
46.
If a train covers 180 km in 2.5 hours, its speed in km/h is:
a)
80 km/h
b)
72 km/h
c)
70 km/h
d)
60 km/h
47.
Which is faster: a bus covering 240 km in 3 hours, or a car covering 250 km in 5 hours?
a)
Bus
b)
Car
c)
Both same
d)
Cannot determine
48.
Who is faster: Ria (600 m in 2 minutes) or Lisa (600 m in 3 minutes)?
a)
Ria
b)
Lisa
c)
Both same
d)
Cannot determine
49.
If a cyclist’s speed is 18 km/h, the distance covered in 5 minutes is:
a)
1.0 km
b)
1.5 km
c)
2.0 km
d)
2.5 km
50.
72 km/h is equal to:
a)
15 m/s
b)
18 m/s
c)
20 m/s
d)
25 m/s
51.
Which of the following best describes translatory motion?
a)
The object spins around a fixed axis
b)
The object changes shape while moving
c)
Every point on the object moves the same distance in the same time
d)
The object remains stationary while its surroundings move
52.
Which of the following describes rectilinear motion?
a)
Motion along a curved path
b)
Motion that repeats at regular intervals
c)
Translatory motion along a straight line
d)
Circular motion around a fixed axis
53.
What type of motion occurs when a body moves in a circular path without shifting position?
a)
Translatory motion
b)
Rotatory motion
c)
Revolutionary motion
d)
Periodic motion
54.
Which example shows periodic motion?
a)
A car taking a turn
b)
A ball rolling on the ground
c)
A pendulum swinging back and forth
d)
A train stopping at a station
55.
What type of motion is shown by the wheels of a moving bicycle?
a)
Only translatory motion
b)
Only rotatory motion
c)
Both rotatory and translatory motion
d)
Only oscillatory motion
56.
When an object covers equal distances in equal intervals of time, it is moving with:
a)
Constant speed
b)
Variable speed
c)
Non-uniform speed
d)
Accelerated speed
57.
A car moving through city traffic, where its speed keeps changing, is an example of:
a)
Uniform speed
b)
Constant motion
c)
Non-uniform speed
d)
Average speed
58.
In uniform motion, the speed of the object:
a)
Increases continuously
b)
Decreases continuously
c)
Remains constant
d)
Changes irregularly
59.
If a bus travels 60 km in the first hour and 80 km in the second hour, its speed is said to be:
a)
Uniform
b)
Non-Uniform
c)
Constant
d)
Steady
60.
Which of the following is an example of uniform motion?
a)
A person walking in a crowded market
b)
A train moving at constant speed without stopping
c)
A car speeding up on a highway
d)
A cyclist slowing down for a turn
61.
Scalar is a physical quantity described by:
a)
Magnitude only
b)
Direction only
c)
Magnitude and direction
d)
None of these
62.
Vector is a physical quantity described by:
a)
Magnitude only
b)
Direction only
c)
Magnitude and direction
d)
None of these
63.
Which of the following is an example of a scalar quantity?
a)
Velocity
b)
Displacement
c)
Mass
d)
Force
64.
If an object returns to its starting point, its displacement is:
a)
Equal to distance
b)
Zero
c)
Negative
d)
Greater than distance
65.
The SI unit of both speed and velocity is:
a)
m²/s
b)
km/h
c)
m/s²
d)
m/s
66.
What causes a body to have acceleration?
a)
Constant speed in a straight line
b)
Uniform velocity
c)
Non-uniform velocity
d)
Zero displacement
67.
Which of the following is the correct formula for acceleration?
a)
Distance / Time
b)
Velocity / Time
c)
Change in velocity / Time taken
d)
Force × Mass
68.
Acceleration is defined as:
a)
The total distance travelled
b)
The rate of change of speed
c)
The rate of change of velocity
d)
Speed in a particular direction
69.
What is the relationship between acceleration and net force acting on a body?
a)
No relation
b)
Inversely proportional
c)
Directly proportional
d)
Constant
70.
If mass increases and the force remains the same, what happens to acceleration?
a)
It increases
b)
It stays the same
c)
It becomes zero
d)
It decreases
71.
If a girl runs around a 400 m circular track and returns to the starting point, her displacement is:
a)
400 m
b)
0 m
c)
200 m
d)
800 m
72.
A car travels 40 km in the first hour, 45 km in the second hour, and 35 km in the third hour. Its average speed in km/h is:
a)
40 km/h
b)
41.67 km/h
c)
42 km/h
d)
43 km/h
73.
A resultant force of 78 N acts on a mass of 3.9 kg. The acceleration produced is:
a)
10 m/s²
b)
20 m/s²
c)
15 m/s²
d)
5 m/s²
74.
The distance travelled by a plane flying at 350 km/h for 3 hours is:
a)
105 km
b)
350 km
c)
700 km
d)
1050 km
75.
If a scooter travels at 45 km/h for 6 hours, the total distance covered is:
a)
270 km
b)
300 km
c)
250 km
d)
400 km
76.
The acceleration of a body while falling down is called:
a)
Free fall
b)
Acceleration due to gravity
c)
Gravitational pull
d)
Weight
77.
The average value of acceleration due to gravity on Earth is:
a)
6.8 m/s²
b)
8.9 m/s²
c)
9.8 m/s²
d)
10.8 m/s²
78.
What causes an object to fall back to the ground when thrown up?
a)
Wind
b)
Gravity
c)
Friction
d)
Air pressure
79.
Which of these bodies has the strongest gravitational pull?
a)
Moon
b)
Earth
c)
Mars
d)
Jupiter
80.
What happens to the speed of a falling object (ignoring air resistance)?
a)
Increases
b)
Decreases
c)
Remains the same
d)
Becomes zero
81.
Energy is defined as the capacity or ability to do:
a)
Motion
b)
Work
c)
Force
d)
Power
82.
Kinetic energy depends on which two physical quantities?
a)
Mass and temperature
b)
Mass and speed
c)
Height and speed
d)
Volume and force
83.
What type of energy is stored in an object due to its position?
a)
Kinetic energy
b)
Potential energy
c)
Heat energy
d)
Light energy
84.
Sound energy is produced due to:
a)
Motion of light
b)
High temperature
c)
Vibration of matter
d)
Flow of current
85.
Which energy is stored inside food and released during digestion?
a)
Electrical energy
b)
Chemical energy
c)
Potential energy
d)
Kinetic energy
86.
Electromagnets convert electrical energy into:
a)
Kinetic energy
b)
Magnetic energy
c)
Light energy
d)
Chemical energy
87.
When a battery is being recharged, the energy transformation is from:
a)
Chemical to electrical
b)
Electrical to chemical
c)
Kinetic to electrical
d)
Heat to chemical
88.
What is the energy transformation in a windmill?
a)
Chemical to electrical
b)
Mechanical to electrical
c)
Light to electrical
d)
Electrical to sound
89.
Photosynthesis in plants converts light energy into:
a)
Heat energy
b)
Kinetic energy
c)
Chemical energy
d)
Sound energy
90.
A geyser converts electrical energy into:
a)
Light and sound
b)
Chemical energy
c)
Heat energy
d)
Mechanical energy
91.
The law of conservation of energy states that energy can be neither:
a)
Created nor destroyed
b)
Increased nor decreased
c)
Stored nor transformed
d)
Converted nor transferred
92.
When a roller coaster descends from a height, its potential energy decreases while its:
a)
Chemical energy increases
b)
Light energy increases
c)
Kinetic energy increases
d)
Heat energy increases
93.
At the highest point of a roller coaster, it has maximum:
a)
Kinetic energy and zero potential energy
b)
Potential energy and zero kinetic energy
c)
Heat energy and sound energy
d)
Magnetic energy and chemical energy
94.
Water stored at a height in a dam possesses:
a)
Kinetic energy
b)
Potential energy
c)
Chemical energy
d)
Electrical energy
95.
In a hydroelectric power plant, the mechanical energy of the turbine is converted into:
a)
Heat energy
b)
Light energy
c)
Electrical energy
d)
Sound energy
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