1.
Random errors can be reduced by:
A
Single reading
B
Changing instrument
C
Taking average of readings
D
Ignoring readings
2.
At the highest point of a vertically thrown object, its velocity is:
A
Maximum
B
Minimum
C
Zero
D
Equal to g
3.
SI unit of mass is:
A
Gram
B
Milligram
C
Kilogram
D
Ton
4.
Which instrument is used to measure time?
A
Clock
B
Balance
C
Thermometer
D
Ruler
5.
Which of the following is a scalar quantity?
A
Force
B
Velocity
C
Displacement
D
Distance
6.
When an object is thrown upward, its acceleration is:
A
Zero
B
Increasing
C
Decreasing
D
Equal to g downward
7.
Which quantity determines the direction of motion?
A
Speed
B
Distance
C
Velocity
D
Time
8.
Prefix micro (µ) means:
A
10⁻⁶
B
10⁻³
C
10⁶
D
10³
9.
Uniform velocity means:
A
Speed changes with time
B
Direction changes with time
C
Equal displacement in equal intervals of time
D
Unequal displacement in equal intervals
10.
Displacement can be zero even when:
A
Distance is zero
B
Time is zero
C
Distance is not zero
D
Speed is constant
11.
The speed of light in vacuum is approximately:
A
3 × 10^6 m/s
B
3 × 10^7 m/s
C
3 × 10^8 m/s
D
3 × 10^9 m/s
12.
Uniform acceleration means:
A
Acceleration changes with time
B
Velocity remains constant
C
Equal change in velocity in equal time intervals
D
Speed remains zero
13.
Distance is defined as:
A
Shortest path between two points
B
Total length of path traveled
C
Change in position with direction
D
Speed multiplied by time
14.
Which causes error in measurement?
A
Instrument fault
B
Human mistake
C
Environmental effects
D
All of these
15.
Which graph represents uniform velocity?
A
Straight line distance-time graph
B
Curved distance-time graph
C
Sloping speed-time graph
D
Curved speed-time graph
16.
Force is a:
A
Scalar
B
Vector
C
Non-physical
D
Derived scalar
17.
Motion under gravity is an example of:
A
Uniform velocity
B
Uniform acceleration
C
Non-uniform acceleration
D
Circular motion
18.
If speed-time graph is a straight line sloping upwards, motion has:
A
Zero acceleration
B
Uniform acceleration
C
Non-uniform acceleration
D
Uniform velocity
19.
Resultant of two vectors at right angles is found using:
A
Addition law
B
Subtraction law
C
Pythagoras theorem
D
Newton’s law
20.
Instantaneous speed is the speed:
A
At the start of motion
B
At the end of motion
C
At a particular instant
D
Averaged over time
21.
SI unit of acceleration is:
A
m/s
B
m/s²
C
km/h
D
N/kg
22.
SI unit of volume is:
23.
The value of acceleration due to gravity on Earth is approximately:
A
9.8 m/s
B
9.8 m/s²
C
8.9 m/s²
D
10 m/s
24.
Which type of motion is shown by a spinning top?
A
Linear motion
B
Circular motion
C
Random motion
D
Oscillatory motion
25.
Which quantity is vector?
A
Speed
B
Time
C
Force
D
Mass
26.
Prefix milli (m) represents:
A
10⁻¹
B
10⁻²
C
10⁻³
D
10³
27.
Which of the following best defines motion?
A
Change in shape of an object
B
Change in position with respect to time
C
Change in speed only
D
Change in size of an object
28.
Least count means:
A
Maximum value of instrument
B
Minimum value measurable
C
Average value
D
Error value
29.
Speed is calculated by the formula:
A
Distance ÷ Time
B
Displacement ÷ Time
C
Acceleration × Time
D
Velocity ÷ Time
30.
Volume of a liquid is measured using:
A
Beaker
B
Measuring cylinder
C
Balance
D
Stopwatch
31.
Unit of force is:
A
Joule
B
Newton
C
Watt
D
Pascal
32.
Which is the SI unit of length?
A
Centimeter
B
Meter
C
Kilometer
D
Millimeter
33.
If the slope of speed-time graph is zero, the object has:
A
Uniform acceleration
B
Increasing speed
C
Uniform speed
D
Zero distance
34.
Zero error occurs when:
A
Scale is broken
B
Instrument reads zero incorrectly
C
Observer is careless
D
Value is large
35.
A horizontal line on a distance-time graph shows:
A
Uniform speed
B
Increasing speed
C
Object at rest
D
Uniform acceleration
36.
Which quantity is measured in m²?
A
Volume
B
Area
C
Length
D
Density
37.
Scientific notation is used to express:
A
Very small and very large numbers
B
Only small numbers
C
Only large numbers
D
Whole numbers