Physics, Wednesday Bell Ringer, 1.10.18

Which of the following is Newton's Law on Gravitation?

• F=Gm₁m₂/r
• F = Gm₁m₂/r²
• F = Gm₁m₂/2r
• F = m₁m₂/2r

Tags

NGSS.HS-PS2-4

What is the value of g on Earth?

• 9.81 m/s^2
• 9.81 N
• 9.81 m
• 9.81 s/m^2

Tags

NGSS.HS-PS2-4

An object has a weight of 12N on the Earth.  It is placed on the moon, where gravity is (1/6) as strong as on the Earth.  What is its weight on the moon?

• 2 N
• 72 N
• 6 N
• 18 N

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

As distance separating the objects increases the force

• increases
• decreases
• stays the same

Tags

NGSS.HS-PS2-4

The law of universal gravitation is credited to whom?

• Einstein
• Galileo
• Darwin
• Newton

Tags

NGSS.HS-PS2-4

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

Tags

NGSS.HS-PS2-4

What is the SI unit used to measure force? 

• pounds 
• grams 
• newtons 
• friction

What variable will cause more change to the force of gravity between two objects?

• Distance (d), because it is squared
• Mass (m), because it is on top of the equation
• Universal Gravity constant (G) 
• Distance (d), because it is on the bottom of the equation

If the distance between two objects is tripled, how will the force of gravity change?

• Fg will be 3x smaller
• Fg will be 9x smaller
• Fg will be 3x greater
• Fg will be 9x greater

A 4 kg object travelling in circular motion with a radius of 3 m has a velocity of 8 m/s. Find the centripetal force.

• 85.33 N
• 10.67 N
• 96 N
• 56 N

Tags

NGSS.HS-PS2-1