True or false on rotational motion

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A rigid body never changes shape.

2. Statement is true

   No

   Statement

   Real bodies are perfectly rigid.

3. Statement is true

   Yes

   Statement

   Torque is a vector quantity.

4. Statement is true

   No

   Statement

   Torque and work are the same quantity.

5. Statement is true

   Yes

   Statement

   Rolling energy adds translation and rotation.

6. Statement is true

   No

   Statement

   Equilibrium needs a large net torque.

Instructions

Decide whether each statement is true or false.

Explanation