Quick picks on power and collisions

Exercise and reference answers

Questions

1. Question

   Power is the time rate of doing:

   Choices

   1. Work
   2. Mass
   3. Charge

   Correct choice

   Work

2. Question

   No kinetic energy lost means the collision is:

   Choices

   1. Inelastic
   2. Elastic
   3. Sticky

   Correct choice

   Elastic

3. Question

   Bodies moving together afterwards make it:

   Choices

   1. Elastic
   2. Explosive
   3. Completely inelastic

   Correct choice

   Completely inelastic

4. Question

   Deformation is pictured as a compressed:

   Choices

   1. Spring
   2. Balloon
   3. Sponge

   Correct choice

   Spring

5. Question

   The bounce ratio gives the coefficient of:

   Choices

   1. Friction
   2. Restitution
   3. Expansion

   Correct choice

   Restitution

Instructions

Tap the correct answer before the round moves on.

Explanation