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15 questions
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- 1. Multiple Choice
Which one is a vector quantity?
Speed
Distance
Time
Velocity
- 2. Multiple Choice
Which one is a scalar quantity?
Distance
Displacement
Acceleration
Force
- 3. Multiple Choice
What is the SI unit of speed?
m/s2
m/s
m
s/m
- 4. Multiple Choice
What happens when a body moves in uniform velocity?
u > v
v > u
u = v
u = 2
- 5. Multiple Choice
Which one of the following equation of motion is correct?
u = v + at
v = u - at
v = u + at
u = v - at
- 6. Multiple Choice
Which of the physical quantity can be calculated by using the formula
u + v
2
Relative velocity
Speed
Average velocity
Acceleration
- 7. Multiple Choice
What is the correct formula to calculate acceleration?
u + v
2
v - u
t
v - u
2
u - v
t
- 8. Multiple Choice
If two bodies move in same direction, their relative velocity is equal to
VAB = VA + VB
VAB = VA - VB
VAB =VA X VB
VAB = VA VB
- 9. Multiple Choice
What happens a body starts to move from rest?
Its u = v
Its u > v
Its u = 0
None of these
- 10. Multiple Choice
What is the SI unit of acceleration?
m/s
m
m / s2
None of these
- 11. Multiple Choice
Which of the following device is used to measure the speed of a body?
Anemometer
Barometer
Speedogauge
Speedometer
- 12. Multiple Choice
What happens when a body gains acceleration?
Its speed decreases.
Its speed does not change.
Its initial velocity and final velocity becomes equal.
Its speed increases.
- 13. Multiple Choice
Which one of the following has uniform velocity?
Motion of Hands of clock
Motion of Planets around the sun
Motion of stars
All of them
- 14. Multiple Choice
When does a body have zero acceleration?
When it moves in uniform velocity
When its u > v
When its final velocity is zero
When its initial velocity is zero.
- 15. Multiple Choice
If a car starts to move from rest and gains a velocity of
25 m/s after 10 sec, find its acceleration.
2 m/s2
2.5 m/s2
5 m/s2
15 m/s2
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