Physics Recap 4

What is the magnitude (size) and direction of the net force?

• 5 N to the Right
• 5 N to the Left
• 10 N to the Right
• 4 N to the Left

Tags

CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

Two people are pushing a disabled car. One exerts a force of 200 N east, the other a force of 150 N east. What is the net force exerted on the car?

• 50 N east
• 350 N east
• 50 N west
• 350 N west

Tags

CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

Calculate the Acceleration.

• 20
• 5
• .2
• 80

Tags

NGSS.MS-PS2-2

Calculate the Acceleration.

• 8
• 1
• .125
• 5

Tags

NGSS.MS-PS2-2

Calculate the net force.

• 600 N
• 66.7 N
• .015 N

Tags

NGSS.MS-PS2-2

Calculate the net force.

• 16 N
• 4 N
• .25 N

Tags

NGSS.MS-PS2-2

The mass of a large car is 1000 kg.  The car accelerates at a rate of 3 m/sec²? If the car’s engine generates a 2800 N force forward, calculate the force of friction.

• - 200 N
• - 2800 N
• - 5.8 N
• 8.4 N

Tags

NGSS.MS-PS2-2

What direction does friction act relative to motion?

• in the same direction
• in the opposite direction 
• need more information
• depends on the force

 What is the force of friction between a block of ice that weighs 950 N and the ground if μ = .12? 

• 65 N
• 226 N
• 175 N
• 114 N

Tags

NGSS.HS-PS2-1

What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N? 

• 0.78
• 0.51
• 0.78 N
• 0.58 N

Tags

NGSS.HS-PS2-1