Practice Kinetic Energy (5.4) - WORK, ENERGY AND POWER - CBSE 11 Physics

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8 questions

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6 sample questions

Question 1.
What is the formula for kinetic energy?
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Consider how mass and velocity contribute.
Question 2.
If the mass of an object doubles while its velocity remains the same, how does its kinetic energy change?
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Think of the relationship K ∝ m.
3Question 3.
What is kinetic energy proportional to?
- mass alone
- velocity alone
- mass and velocity squared
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Remember the formula K = 1/2 mv².
4Question 4.
True or False: Kinetic energy can be negative.
- True
- False
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Think about the mathematical definition of kinetic energy.
Question 5.
A 2 kg object moving with a speed of 5 m/s collides with a stationary object of mass 3 kg. Assuming a perfectly elastic collision, find the final velocities of both objects.
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Set up equations from momentum and energy conservation.
Question 6.
A vehicle traveling at 60 km/h comes to a halt due to a frictional force. Calculate the distance traveled before stopping if its mass is 1000 kg and the coefficient of friction is 0.6.
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Convert speed to m/s, then apply K=1/2 mv² and W=F x d.

4 more questions in this section. Enroll free to practise them all.