1) A solid triangle made from copper is cut into three pieces P, Q and R.

Which has the greatest density?

2) What is the correct SI unit for weight?

3) The mass of a body resists changes to its motion.

Which property of the body is responsible for this resistance?

4) Consider the following statements:

(1) Inertia is a force in the direction of the motion.
(2) Inertia is the tendency of an object to maintain its motion.
(3) The more mass an object has, the greater its inertia.

Which of the statements(s) is/are correct?

5) In a laboratory on Earth, balances show that an object has a mass of 2 kg and a weight of 20 N.

The same balances and object are then taken to the Moon.

Are the mass and weight the same, or less than before?