W=mg Problems

What will happen to your weight when you go to the moon?

• It will increase

• It will decrase

• It will stay the same

Tags

NGSS.MS-PS2-4

If your mass is 35 kg on Earth, what would you weigh on Mars (g = 3.7 m/s2)?

• 120 N

• 130 N

• 120 kg

• 130 kg

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

If an object mass =30 Kg on the Earth, what would be it's weight on Earth?

• 30 N

• 300 kg

• 3000N

• 300 N

Tags

NGSS.MS-PS2-4

Solve the problems: A rock is lying on a ledge that is 5 m high. The rock has a mass of 15 kg. What is the potential energy of the rock? (Remember PE=mgh, g=9.8)

Which equation would you use to figure out the answer to this question? "A cat that has a mass of 5 kg climbs to the top of a tree that is 10 m high. How much potential energy does the cat have at the top of the tree?"

• W=Fxd

• h=PE/mg

• m=PE/gh

• PE=mgh

Tags

NGSS.MS-PS3-2

What is the weight of a 50 kg object on Earth?

• 490 N

• 500 N

• 510 N

• 520 N

Tags

NGSS.MS-PS2-4

If an astronaut has a mass of 80 kg, what is their weight on the Moon where gravity is 1.6 m/s²?

• 128 N

• 480 N

• 800 N

• 1280 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A 10 kg object is taken to a planet where the gravitational acceleration is 15 m/s². What is its weight on that planet?

• 100 N

• 150 N

• 200 N

• 250 N

Tags

NGSS.MS-PS2-4

Which of the following equations correctly represents the relationship between weight, mass, and gravitational acceleration?

A 25 kg suitcase is on a plane flying at an altitude where gravity is 9.5 m/s². What is the weight of the suitcase?

• 237.5 N

• 245 N

• 250 N

• 255 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4