Comparing Spring Forces and Stretches

A box is pulled to the right by a spring. From the box's perspective, the spring force would be to the ______

Two springs A, of spring constant k1, and B, of spring constant k2 have the same mass attached to them vertically. Which spring will have a greater spring force pulling up the mass?

• Spring A

• Spring B

• Both are equal

• Insufficient information to determine

Tags

NGSS.HS-PS2-1

Two springs A, of spring constant k1, and B, of spring constant k2 have the same mass attached to them vertically. If k1 is greater than k2, then which spring will have a greater stretch?

• Spring A

• Spring B

• Both are equal

• Insufficient information to determine

Tags

NGSS.HS-PS2-1

Two springs A, of spring constant k1, and B, of spring constant k2 have the same 1.0 kg mass attached to them vertically. What other information do you need to calculate how much more spring A is stretched compared to spring B using the same mass?

• The value of k1

• The value of k2

• The value of g

• You have all the information needed

Spring A has a higher value spring constant than spring B. Both spring are massless and have different masses hung from them. If both spring has the same stretch distance, then which spring has a higher mass attached to it?

• Spring A

• Spring B

• Both have the same masses attached

• Insufficient information.

Tags

NGSS.HS-PS2-1

A 10.0 kg box is pulled by a spring on a rough surface with coefficient of friction of 0.500 and 0.200 respectively. If the box is moving at a constant velocity, what is the spring force equal to?

• 20 N

• 50 N

• 2 N

• 5 N

Tags

NGSS.HS-PS2-1

A 10.0 kg box is pulled by a spring on a rough surface with coefficient of friction of 0.500 and 0.200 respectively at a constant velocity. Suppose the force of kinetic friction acting on the box is 20 N and the spring constant is 200 N/m, then by how much is the spring stretched?

• 0.1 m

• 10 m

• 0.01 m

• Insufficient information to answer.

A 100 g mass is attached to a spring and stretches it out a distance of 20 cm. A student calculated the spring constant to be 500 N/m. What two mistakes did the student make?

• They did not convert the mass into kg by dividing 100 g by 1000

• They did not convert the mass into kg by dividing 100 g by 100

• The student did not convert the distance into meters by dividing 20 cm by 100

• The student did not convert the distance into meters by dividing 20 cm by 1000

A 100 g mass is attached to a spring and stretches it out a distance of 20 cm. What is the spring constant in N/m?

• 5 N/m

• 50 N/m

• 0.5 N/m

• 500 N/m

Two identical boxes are on a flat rough surface and acted on by two different forces. Box 1 is pulled with a force of F1 at an angle of 30 degrees above the horizontal. Box B is pulled with a force of F2 at an angle of 45 degrees above the horizontal. If the current value of friction acting on Box 1 and 2 are the same and both boxes remain stationary, then how does the magnitude of F1 compare to F2?

• F1 > F2

• F1 < F2

• F1 = F2

• Insufficient information

Tags

NGSS.HS-PS2-1