Gravitation - Quiz II

A moon is located at 1 unit out from the planet it orbits. If that moon was orbiting at 2 units out from the planet, how much would the gravitational force on the moon be compared to its distance at 1 unit?

• $\frac{1}{4}$ of the original force

• $\frac{1}{6}$ of the original force

• twice as much

• 4 times as much

Tags

NGSS.MS-ESS1-2

A person on the Earth weighs 180 pounds. How much will they weigh on the moon? ( Note: The moons "g" is  $\frac{1}{6}$ times that of Earth)

• 30 lbs

• 360 lbs

• 0- you are weightless in space

• 18 lbs

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The reason why ocean tides happen is

• Electrical forces between the sun and the moon

• gravitational forces between the Earth and the moon.

• Magnetic forces between the Earth and the moon

• Motion of the moon around the earth

Tags

NGSS.MS-PS2-4

How do you Calculate Pressure

• Force(N)/Area(m²)

• Force(kg)/Area(mi²)

• Area(m²)/Force(N)

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

An object will float on water if it is

• less dense than water.

• more dense than water.

• the same density as water.

What pressure does a 4000N horse exert on the ground if each foot is 10cm²?

• 40 N/cm²
• 100 N/cm²
• 400 N/cm²
• 10 N/cm²

A fluid can be...

• a gas
• a liquid
• a liquid or a gas
• a solid

Tags

NGSS.MS-PS1-4

Which of these animals would probably cause the greatest pressure on the ground?

• A fat cow with big feet
• A fat cow with small feet
•  A calf with big feet
• A calf with small feet

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

What is the instrument that measures air pressure called?

• Graduated cylinder
• Barometer
• Force scale
• Anemometer