Practice Rate of Doing Work - 10.3 | 10. Work and Energy | CBSE 9 Science
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the scientific definition of work?

πŸ’‘ Hint: Consider displacement when thinking of work.

Question 2

Easy

What unit is used for power?

πŸ’‘ Hint: Remember that 1 W = 1 J/s.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is work defined as in physics?

  • Force without movement
  • Force causing displacement
  • Energy without force

πŸ’‘ Hint: Think about how force interacts with movement.

Question 2

True or False: Power is the same as work.

  • True
  • False

πŸ’‘ Hint: Remember the definitions of both terms.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A crane lifts a load of 500 kg to a height of 15 m in 20 seconds. Calculate the work done and the power output of the crane.

πŸ’‘ Hint: Use both work and power formulas to solve.

Question 2

If a person exerts a force of 200 N to move a box 3 meters and it takes 6 seconds, calculate both the work done and the average power.

πŸ’‘ Hint: Calculate work first, then use that to find power.

Challenge and get performance evaluation