KHTN 6 - ÔN TẬP HKI

Arun doesn't fall through the chair because the .................... from the chair is equal to his weight.

High tides at ....

.................. is the name given to a cloud of dust and gas in space.

The forces that cause tides are called …………………….....

On Earth, a baby of weight 50 N. Calculate the mass.

On Earth, a person of mass 60 kg. Calculate the weight.

The force of …………………. caused by an object acts towards the centre of the object.

On Earth, a person of weight 400 N. Calculate the mass.

B is ....

……………is the quantity of matter in an object. It is measured in kilograms.

The forces that cause tides come from the ………………………….and the …………………..

C is ...

Low tides at ...

On Earth, a pig of mass 100 kg. Calculate the weight.

……………. is the force of gravity on an object. It is measured in newtons.

A is ...