Forces Review Penner 1

Calculate the Net Force. 

• 60N, Left 
• 40N, Right 
• 0N
• 60N, Right

Tags

NGSS.HS-PS2-1

If the object in this picture is in equilibrium, What is the force of friction?

• 0

• 12

• 8

• 4

Tags

NGSS.HS-PS2-1

If the object in this picture is in equilibrium, What is the Normal Force?

• 0

• 10

• 19

• 28

Which of the following springs is the stiffest?

• A spring that requires a force of 2000 N to compress it by 6.8 m.

• A spring that requires a force of 4000 N to stretch it by 9.0 m.

• A spring that requires a force of 8000 N to compress it by 45 m.

• A spring that requires a force of 4800 N to stretch it by 14 m.

A force of F=500 N is applied to extend a spring.  What is the displacement x of the spring if its spring constant is k= 540 N/m?

• 0.96 m
• 0.93 M
• 1.3 m
• 1.1 m

The graph below shows elongation as a function of the applied force for two springs, A and B. Compared to the spring constant for spring A, the spring constant for spring B is

• the same
• greater
• smaller
• cannot be determined

A curved groove is place on the top of a level table as shown in the diagram. A ball is pushed in the groove at P so that it leaves at Q. Which picture shows how the ball will move when it leaves the groove at Q?

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• 
• 
• 

What does it mean for an object to be in equilibrium? Select ALL correct answers.

• It has no net force acting on it.

• The object is not accelerating

• The sum of all the forces acting on an object is 0.

• The object is ONLY at rest.

The free body diagram of four boxes are shown below. Which box is in equilibrium?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

A person is pushed forward into their seatbelt when a car stops. This is an example of Newton's...

• 1st law
• 2nd law
• 3rd law