Intro to Gravity

Weight

• changes depending on the amount of gravity acting on you.

• changes as your mass changes.

• is dependent up the your mass multiplied by force of gravity.

• is dependent upon the way you eat.

Tags

NGSS.MS-PS2-4

Mass ....

• changes depending on how much gravity is acting on it.

• is always different.

• is constant.

• is never the same.

Tags

NGSS.MS-PS1-5

If my mass on Earth was 56 kg, then my mass on the moon would be...

• 145 kg

• 32 kg

• 56 kg

• 167 kg

My weight on Earth is 145 lbs, but my weight on the moon is 23 lbs. What must this mean about the moon?

• The moon is smaller than Earth and has less gravity, therefore I weigh less.

• The moon is bigger than Earth and has more gravity, therefore I weigh less.

• The moon is smaller than the Earth and have more gravity, therefore I weigh less.

Tags

NGSS.MS-PS2-4

Earth's gravity is ​ ​ (a)   ​ m/s2.​ ​

• 9.8

• 12

• 1,000

• 8.809

Which model has greater gravitational attraction (if any)

• Model A

• Model B

• Both Model A and Model B (same gravity)

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

True or False: As one object gets closer to another object, the force of gravity will increase.

• True

• False

Tags

NGSS.MS-PS2-4

True or False: As one object gets closer to another object, the force of gravity will increase.

• True

• False

Tags

NGSS.MS-PS2-4

The formula W= mg means

• waste = matter x gravity

• Weight= matter x gravitational fields

• Weight = mass x gravitational fields

• Weight= Mass x acceleration of gravity

If w= m x g shows that the amount of gravity changes my weight, but mass is always constant, how can I weigh nothing in space?

• Even if there is no gravity (0) I can still have a Mass (m), because anything times zero is zero. 0= 56 x 0

• Even if there is no gravity I will still have weight, so you always weigh something in space.

• Mass is constant so you always weigh something.

Tags

NGSS.MS-PS2-4