Forces and motion

What is the difference between mass and weight?

• - Mass is how much matter is in an object, and weight is the amount of force that pulls down on that object.

• Weight is a force that affects how much mass is in an object

• - There is no difference between mass and weight.

Which force makes a moving ball slow down

• - Gravity

• - a push or pull.

• - friction.

Which of the following can happen if the forces on an object are balanced?

• The object moves faster

• - The object moves in a different direction.

• - The object does not move.

Tags

NGSS.3-PS2-1

Which sentence correctly describes force and work?

• If a force acts on an object, then work is done.

• If a force makes an object move, then work is done

• If a force makes an object stop moving, then work is done.

Tags

NGSS.MS-PS2-2

We measure mass in

• - Kilogram

• - Yard

• - Meter

• - Litre

We measure weight in

• Litre

• - Kilogram

• - Newton

• - Yard

Forces act in

• - One direction

• - All direction

• - No direction

• - Friction

Tags

NGSS.MS-PS2-2

When two opposite forces are not balanced there is

• - Balanced

• - Unbalanced

• - Net force

• - Newton

Tags

NGSS.3-PS2-1

forces can change

• - Speed

• - Direction

• - Shape

• - All of the above

Tags

NGSS.MS-PS2-2

- Moving object has

• - Energy

• - Balanced

• - No friction

• - Space

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5