Physic Question Preview (ID: 4231)


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Improperly installed air conditioners can occasionally fall from apartment windows. How long does a pedestrain have to get out of the way of an air conditioner failing from 24m?
a) 1.2s
b) 120s
c) 4.8s
d) 2.19s

A 500 newton force was applied on a weight of 100kg to lift it up. What was the work done?
a) 5
b) 0.5
c) 0
d) 2

The weight of a man on earth is 800N. He lands on a planet where his weight is 400n. The acceleration due to gravity on this planet is?
a) 4
b) 5
c) 8
d) 10

what is the unit for energy, work and force?
a) joule, power , newton
b) power, joule, newton
c) newton, joule, power
d) mass, efficiency, power

After accelerating gradually, a body reaches 30m/s after 40 seconds. It then come to rest after 60 another seconds. How far did it travelled?
a) 150m
b) 240m
c) 400m
d) 90m

After accelerating gradually, a body reaches X m/s after Y seconds. It then come to rest after Z another seconds. How far did it travelled?
a) 0.5(XY-XZ)
b) 0.5(XYxXZ)
c) 0.5(XY+XZ)
d) 0.5(XY/XZ)

The reading from a car's speedometer at a particular moment in time is best described as the car's_______?
a) avaerage velocity
b) instantaneous velocity
c) non-uniformed velocity
d) uniform velocity

Which quantity will not be affect the acceleration?
a) force
b) weight
c) mass
d) gravitational force

A weight on planet X shows 60N on a spring balance. What is it's reading on spring balance?
a) 60
b) 36
c) 360
d) 3600

A car of 10000n moved 1000 metre in 100 sec. What is the work done?
a) 1000
b) 10000
c) 100000
d) 1000000

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