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## Workshop Calculation and Science

#### Year 1 Module 5

1 : What is the formula for speed
A : Distance covered/Time
B : Change in velocity/Time
C : Distance in definite direction /Time
D : Change in momentum/Time

2 : What is the unit of speed

A : Metre/second
B : Metre/second2
C : Metre/minute
D : Metre/hour

3 : What is the formula for velocity
A : Distance covered/Time

B : Displacement/Time
C : Change in velocity/Time
D : Change of momentum/Time

4 : What is the unit for velocity

A : Metre/second
B : Metre/second2
C : Metre/minute
D : Metre/hour

5 : What is called if a body posses only magnitude or size alone
A : Speed
B : Velocity
C : Vector quantity

D : Scalar quantity

6 : What is called if a body posses both magnitude and direction of velocity
A : Speed
B : Velocity

C : Vector quantity
D : Scalar quantity

7: What is the rate of change of displacement of a body
A : Body at rest
B : Body at motion
C : Speed

D : Velocity

8: What is called if a body does not change its position with respect to its surroundings
A : Body at motion

B : Body at rest
C : Speed
D : Velocity

9: What is called if a body changes its position with respect to its surroundings
A : Body at rest

B : Body at motion
C : Speed
D : Velocity

10: What is velocity of a body travels a distance of 168 metres in a line in 21 seconds
A : 6 m/sec

B : 8 m/sec
C : 10 m/sec
D : 12 m/sec

11: What is the speed of a train of 80 metre long train passes a railway station platform of 120 metres length in 20 seconds
A : 30 km/hour
B : 32 km/hour
C : 34 km/hour

D : 36 km/hour

12: What is the formula for acceleration
A :

B :
C :
D :

13: What is the unit of acceleration of an object
A : Metre/second

B : Metre/second2
C : Metre/minutes
D : Metre/minutes2

14: What is the acceleration of a car if the speed of the car has increased from 25 km per hour to 40 km per hour in one minute
A : 0.059 m/sec2
B : 0.59 m/sec2

C : 0.069 m/sec2
D : 0.69 m/sec2

15: What is the retardation of a car moving with a velocity of 50 km/hr is brought to rest in 45 seconds  50
A : 0.40 m/sec2

B : 0.30 m/sec2
C : 0.20 m/sec2
D : 0.10 m/sec2

16: What is the acceleration of an aeroplane taking off from landing field has to run 700 metres if it leaves the ground in 10 seconds from the start
A : 8 metre/sec2
B : 10 metre/sec2

C : 12 metre/sec2
D : 14 metre/sec2

17: What maximum height a stone will reach if it is thrown upwords with a velocity of 20m/sec(g = 10m/sec2)
A : 10 m

B : 20 m
C : 30 m
D : 40 m

18: What is the work done in unit time
A : Energy

B : Power
C : Force
D : Acceleration

19: What is the capacity of a body to do work is called

A : Energy
B : Power
C : Acceleration
D : Force

20: What is the ratio of power output to power input
A : Work
B : Energy

C : Efficiency
D : Acceleration

21: What is called if a force of 1 Newton acts on a body and moves it through a distance of 1 metre

A : 1 Joule
B : 10 Joules
C : 1 dyne
D : 10 dynes

22: How many ergs for 1 Joule
A : 103 ergs
B : 105 ergs

C : 107 ergs
D : 109 ergs

23: How many newtons for 1 kilogram
A : 981 Newtons
B : 98.1 Newtons

C : 9.81 Newtons
D : 0.981 Newtons

24: How many watts for 1 horse power in metric system
A : 725.5 watts

B : 735.5 watts
C : 745.5 watts
D : 755.5 watts

25: How many watts for 1 horse power in British system
A : 726 watts
B : 736 watts

C : 746 watts
D : 756 watts

26: What is the equivalent unit for 1horse power in metric system
A : 75 kg.m/sec
B : 76 kg.m/sec
C : 77 kg.m/sec
D : 78 kg.m/sec

27: What is the formula for potential energy

A : mgh joule
B : mgh2 joule
C : 1/2 mgh joule
D : 2/3 mgh joule

28: What is the formula for kinetic energy
A : 1/2 mv joule

B : 1/2 mv2 joule
C : 2/3 mv2 joule
D : 2/3 mv joule

29: How much work done in one hour if a pump can raise 100 liters of water through a height of 200 meters in one minutes
A : 12 x 104 kg meter

B : 12 x 105 kg meter
C : 12 x 106 kg meter
D : 12 x 107 kg meter

30: What is the work done if a force of 250 newtons acted upon a body and the body has been moved through a distance of 15 metres
A : 3720 Joules
B : 3730 Joules
C : 3740 Joules

D : 3750 Joules

31: What is the potential energy if a body of mass 250 kg is at a height of 30 metre
A : 72.57 KJ

B : 73.57 KJ
C : 74.57 KJ
D : 75.57 KJ

32: What is the potential energy in a body of mass 10 kg kept on the top of a pole 20 metres height 250
A : 1942 Joules
B : 1952 Joules

C : 1962 Joules
D : 1972 Joules

33: What is the work done in joules if a load of 15.5 kg is lifted through a height of 4.4 metres
A : 639 Joules
B : 649 Joules
C : 659 Joules

D : 669 Joules

34: What is the kinetic energy of a bullet of mass 5gm travels with a speed of 500 m/sec
A : 620 Joules

B : 625 Joules
C : 630 Joules
D : 635 Joules

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