# Physics Quiz

## Quiz by Madeeha Usman - 79151/TCHR/EJHM

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19 questions
• Q1
unstable equilibrium
stable equilibrium
neutral equilibrium
60s
• Q2
Which one of the following activities does not apply the turning effect of a force?
sliding down a slide
moving up and down on the see-saw
rowing a boat
60s
• Q3
A uniform metre ruler of weight 0.2N balances at the 60-cm mark when a weight W is placed at the 80-cm mark. What is the value of W?
0.15 N
0.2N
0.1N
120s
• Q4
The centre of mass of a body
must be in a solid part of the body
has a fixed position
is always outside the body
60s
• Q5
___________energy is the energy a body possesses due to its movement
potential
kinetic
centripetal
60s
• Q6
_________ is defined as the rate of doing work
power
workdone
pressure
60s
• Q7
A crane lifts a load of 8000N through a vertical distance of 20m in 4s. What is the average power during this operation?
1600W
100W
40000W
120s
• Q8
A toy car A moving with a speed of 30 m/s has a kinetic energy of 900J. Another toy car B has twice the mass of toy car A. If toy car B moves with a speed of 15 m/s, what is the kinetic energy of toy car B?
900J
1800J
450J
120s
• Q9
During free fall, work is done by
gravitational force
frictional force
magnetic force
60s
• Q10
Kinetic energy is transformed into gravitational potential energy when
a rubber band is stretched
a raindrop falls from the sky
a stone is thrown upwards
60s
• Q11
Which expression is used to calculate force?
pressure x area
work x distannce
power + time
60s
• Q12
A rock of mass 20kg is travelling in space at a speed of 6m/s. What is its kinetic energy?
360
120 J
240 j
120s
• Q13
A drinking glass has a low centre of gravity because
its contents are denser
it is heavy
60s
• Q14
The pressure in a liquid decreases with----------
increase in surface area
Decrease in surface area
Increase with depth
60s
• Q15
A block of wood measuring 6m by 3m by 0.5m is placed on a table. If the mass of the block of wood is 4500kg, what is the pressure on the table due to the block? take gravitational force acting on a mass of 1kg to be 10N
5000Pa
9000Pa
2500Pa
120s

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