Tag: galileo's law and inertia

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Questions Related to galileo's law and inertia

Multiple choice physics force and newton's laws of motion concept of inertia galileo's law and inertia mass and inertia

While dusting a carpet, we give a sudden jerk or beat with a stick because :

  1. Inertia of rest keeps the dust in its position and the dust is removed by movement of carpet away.

  2. Inertia of motion removes dust.

  3. No inertia involved in process.

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When carpet is given sudden jerk, due to inertia dust particles does not change position, while carpet moves.

Thus dust particles gets separated from carpet.
So, Option A is correct. 

Multiple choice physics dynamics - explaining motion concept of inertia galileo's law and inertia mass and inertia

When a running horse suddenly stops, the rider falls forwards.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

the statement is true and the reason is Newton's law of inertia or First law of motion. 

As body tends to be in its original state when the horse suddenly stops, the lower part of rider stops with it but upper part remains in motion. So, rider falls forward.

Multiple choice physics force and newton's laws of motion concept of inertia galileo's law and inertia mass and inertia

Which of the following has more inertia ___

  1. 5Rp coin and 2Rp coin

  2. 2Rp coin and 3Rp coin

  3. 10Kg iron

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Inertia depends upon the mass of the body. If the mass is more, inertia is more and vice versa. 10kg iron has more mass than 5Rp coin and 2 Rp coin thus its inertia is also more.
So, the correct answer is '10kg iron'.