TRUE / FALSE

Questions

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5 questions · timed · auto-graded

Question 11 Mark

If the displacement caused by a force is at right angles to the direction of applied force, the work done is zero.

Answer

TRUE

Question 21 Mark

A boy carrying a school bag on his shoulder does work.

Answer

FALSE

Question 31 Mark

A student preparing his lessons for monthly tests does mental work.

Answer

FALSE

Question 41 Mark

The product of force and the displacement caused by it is called power.

Answer

FALSE

Question 51 Mark

An old unit of energy is calorie.

Answer

TRUE

PHYSICS TRUE / FALSE