Phys Sci Forces

Which is true?

• Your weight would be more on the Moon than on the Earth.

• Your mass would be less on the Moon than on the Earth.

• Your weight would be the same on the Earth and on the Moon.

• Your mass would be the same on the Earth and on the Moon.

Which of these things will not happen if there are unbalanced forces on an object?

• It will start to move.

• It will continue to move at the same speed.

• It will slow down.

• It will change direction.

Tags

NGSS.MS-PS2-2

An elastic material...

• cannot be squashed.

• Stretched and then goes back to it's original shape.

• Stretches and stays the new shape.

• Does not stretch.

A car needs a forwards force to keep moving because:

• gravity is trying to slow it down.

• everything needs a force to keep moving.

• weight balances friction.

• it needs a force to balance friction and air resistance.

Tags

NGSS.MS-PS2-2

Which word means the force of gravity on an object?

• Friction

• Upthrust

• Pressure

• Weight

Tags

NGSS.HS-PS2-4

What are the units of force?

• Kilogram

• centimetre cubed

• centimetre squared

• Newtons

The diagram shows the forces acting on a cyclist. Which label corresponds to friction and air resistance?

• F1

• F2

• F3

• F4

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following statements must be true for the cyclist to reduce his speed?

• force F1 is bigger than F3

• force F3 is bigger than F1

• force F1 is equal to F3

• force F2 is equal to F4

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following statements must be true for the cyclist to travel at a constant speed?

• force F1 is bigger than F3

• force F1 is equal to F3

• force F3 is bigger than F1

• force F2 is equal to F4

Tags

NGSS.MS-PS2-2

A student carried out an experiment by putting weights on the end of a spring. After each weight was added, the length of the spring was carefully measured. The results are summarised in the table. From the data, what would be the spring length with a weight of 7N on?

• 30cm

• 32cm

• 33cm

• 34cm

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-2