Always equal to 6.67x10^-11

• C
• g
• F_c
• G

Tags

NGSS.HS-PS2-4

Which of the following vectors depict the speed of the the mass?

• A
• B
• C
• D

Which of the following units is used for tangential velocity?

• m/s²
• N
• J
• m/s

A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the radius triples with out changing the velocity?

• 9.8?

• Force triples

• Force divides by 3

• Force divides by 9

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the velocity triples?

• Nothing

• The centripetal force triples

• the centripetal force multiplies by 9

• The centripetal force divides by 3

Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3.00m/s if the ball weighs 0.12 kg and her arm is 0.65 meters long.

• 0.38
• 1.23
• 0.55
• 1.66 N

Tags

NGSS.HS-PS2-1

As this ride starts to spin in a circular motion the swings move outward.  What is the cause of this outward motion

• Gravity
• Centripetal Force
• Speed
• Inertia

Tags

NGSS.HS-PS2-1

You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?

• Friction
• Centripetal Force
• Gravity
• Inertia

Tags

NGSS.HS-PS2-1

What is the direction of the net force when the roller-coaster is at the top of the loop?

• Towards the sky
• Towards the Right
• Towards the left
• Towards the ground

Tags

NGSS.HS-PS2-1