Q6/10: If the velocity of a moving object is doubled, its kinetic energy becomes:
Anonymous Quiz
28%
Two times
56%
Four times
14%
Half
2%
One-fourth
0%
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Q7/10: The rate of doing work is known as:
Anonymous Quiz
37%
Energy
50%
Power
5%
Force
7%
Momentum
0%
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Q8/10: 1 kilowatt-hour (kWh) is equal to:
Anonymous Quiz
21%
3.6 MJ
18%
36 MJ
46%
3.6 kJ
14%
360 J
1%
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Q9/10: In an elastic collision, which of the following is conserved?
Anonymous Quiz
18%
Only kinetic energy
23%
Only momentum
56%
Both kinetic energy and momentum
4%
Neither
0%
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Q10/10: In a perfectly inelastic collision, the coefficient of restitution e is:
Anonymous Quiz
27%
1
27%
0
41%
Between 0 and 1
5%
Infinity
0%
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✨ Quiz Time! ✨
Answer today's quiz questions and test your knowledge.
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Answer today's quiz questions and test your knowledge.
Every question is a step toward exam success!
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Good luck!
Q1/10: A mass of 1 kg is dropped from a height of 10 m. What is its kinetic energy just before hitting the ground? (g = 10 m/s^2)
Anonymous Quiz
14%
10 J
24%
50 J
59%
100 J
4%
0 J
0%
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Q2/10: Assertion: Work done by friction over a closed path is zero. Reason: Friction is a non-conservative force.
Anonymous Quiz
34%
Both A and R are true and R explains A
39%
Both A and R are true but R does not explain A
8%
A is true but R is false
18%
A is false but R is true
0%
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Q3/10: The potential energy of a spring stretched by distance x is proportional to:
Anonymous Quiz
23%
x
43%
x^2
13%
x^3
21%
Square root of x
0%
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Q4/10: A body of mass m is moving in a circle of radius r with a constant speed v. What is the work done by the centripetal force in moving the body over half the circumference?
Anonymous Quiz
19%
(mv^2/r) * pi * r
37%
Zero
42%
mv^2/r
0%
mv^2
2%
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Q5/10: The area under a force-displacement graph represents:
Anonymous Quiz
9%
Power
29%
Momentum
54%
Work done
9%
Impulse
0%
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Q6/10: A 50 kg girl is on a swing. She is 1 m above the ground at the lowest point and 2 m above at the highest point. Her maximum speed is: (g = 10 m/s^2)
Anonymous Quiz
8%
2.2 m/s
43%
4.5 m/s
30%
6.3 m/s
18%
10.0 m/s
3%
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Q7/10: Which of the following forces is conservative?
Anonymous Quiz
33%
Frictional force
21%
Air resistance
43%
Gravitational force
0%
Viscous force
2%
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Q8/10: Two bodies of masses m and 4m have equal kinetic energies. The ratio of their linear momenta is:
Anonymous Quiz
21%
1:2
46%
1:4
31%
4:1
3%
1:1
0%
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Q9/10: Assertion: In an inelastic collision, the total energy of the system is not conserved. Reason: Kinetic energy is lost in the form of heat and sound.
Anonymous Quiz
26%
Both A and R are true and R explains A
32%
Both A and R are true but R does not explain A
19%
A is true but R is false
16%
A is false but R is true
6%
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Q10/10: A car weighing 1000 kg is moving at 10 m/s. Brakes are applied to bring it to rest in 5 m. The average retarding force is:
Anonymous Quiz
25%
5000 N
67%
10000 N
3%
2000 N
6%
1000 N
0%
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🎉 Quiz Finished! 🎉
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✨ Quiz Time! ✨
Answer today's quiz questions and test your knowledge.
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Every question is a step toward exam success!
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Good luck!
Q1/10: The center of mass of a uniform thin rod of length L is located at:
Anonymous Quiz
13%
L/4 from one end
62%
L/2 from one end
15%
L from one end
8%
L/3 from one end
3%
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