force

The force act on an object due to it mass

• Gravity

• un balanced force

• Tide

Identify which gravity acts on object on earth

• Towards the north pole

• Towards the sky

• Towards the south pole

which of these statement is correct

• Gravity only act on falling object

• Gravity only acts on touching the ground

• Gravity act on all object all the time

State weather the earth experience a gravitational force that pulls it towards the moon

• Yes

• NO

Which of the following change depending on strength of gravity

• Mass

• weight

Identify which of the following is the best definition for weight.

• The scientific unit used to measure force

• The amount of matter contained within a solid object

• The force acting in object due to gravity

Identify which of the following doesn't change, even when the strength of gravity changes.

• Mass

• weight

Identify which of the following is the best definition for mass.

• The amount of matter in object

• The force that pull object towards the center of earth

• a unit of measuring a force

State the best definition for inertia.

• The amount of force needed to stop moving object

• The amount of thrust needed to get an object moving

• The tendency of an object to resist a change in motion

A rocket ship heading for the Moon turns off its thrusters in mid-flight. It is in the middle of space, with no friction to slow it down. Inertia can be used to predict what will happen to the rocket ship.

Describe what will happen next to the rocket ship.

• Turn around for home

• continue at the constant speed

• stop immediately