Forces and Newton's Laws

Little g is used to represent:

• The mass of the earth

• The strength of earth's gravitational field

• The gravitational force

• The weight of objects on earth

Tags

NGSS.HS-PS2-4

What would the strength of gravity be for this planet?

• 7 N/kg

• 0.2 N/kg

• 0.5 N/kg

• 5 N/kg

Which of the following units would be a measure of an object's weight?

• Newtons

• Kilograms

• Meters

• Joules

True or False? An object in motion must feel a force.

• True

• False

Tags

NGSS.MS-PS2-2

True or False? An object whose motion is changing must feel an unbalanced force.

• True

• False

Tags

NGSS.MS-PS2-2

Consider the above force diagram. This object...

• Must be at rest.

• Must be moving to the right.

• Must be moving to the left.

• Could be moving to the right or the left.

Tags

NGSS.MS-PS2-2

Ignoring the effects of friction, would it be easier to push a car on the moon or on the earth?

• On the Moon

• On the Earth

• It would be the same on both

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Ignoring the effects of friction, would it be easier to lift a box over your head on the moon or on earth?

• On the Moon

• On the Earth

• It would be the same on both

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which fundamental force deals with the attraction between objects with mass?

• Strong Nuclear Force

• Weak Nuclear Force

• Electromagnetic Force

• Gravitational Force

Tags

NGSS.MS-PS2-4

Which fundamental force deals with the attraction or repulsion between objects with electric charge?

• Strong Nuclear Force

• Weak Nuclear Force

• Electromagnetic Force

• Gravitational Force

Tags

NGSS.MS-PS2-3