Physics Quiz

What is a scalar quantity?

• A quantity that has magnitude only.

• A quantity that has magnitude and direction.

• A quantity that has no magnitude.

• A quantity that has no direction.

What is a vector quantity?

• A quantity that has magnitude only.

• A quantity that has magnitude and direction.

• A quantity that has no magnitude.

• A quantity that has no direction.

What is the unit of the moment (or torque) of a force?

• m

• m/s²

• Nm

• m/s

What is the centre of gravity?

• The point where the entire weight of the body is considered to act.

• The point where the velocity of the body is maximum.

• The point where the acceleration of the body is zero.

• The point where the force on the body is minimum.

What is the unit of displacement?

• m

• m/s

• Nm

• m/s²

How is mean/average speed calculated?

• Total distance travelled divided by total time taken.

• Total displacement divided by total time taken.

• Change in velocity divided by time taken.

• Rate of change of distance.

What is the unit of mean/average speed?

• m

• m/s

• Nm

• m/s²

What is instantaneous speed?

• Rate of change of distance.

• Rate of change of displacement.

• Change in velocity divided by time taken.

• Total distance travelled divided by total time taken.

What is the unit of mean/average velocity?

• m

• m/s

• Nm

• m/s²

What is the unit of mean/average acceleration?

• m

• m/s

• Nm

• m/s²