2.2a Hooke's Law

Question 1

State Hooke’s Law

Answer 1

F_s=kx

Question 2

Fs stands for

Answer 2

_{force applied on the spring}

Question 3

k stands for

Answer 3

spring constant

Question 4

x stands for

Answer 4

elongation or compression

Question 5

F_r stands for

Answer 5

the restoring force

Question 6

The units of F_s are

Answer 6

N

Question 7

The units of k are

Answer 7

N/m

Question 8

The units of x are

Answer 8

m

Question 9

The units of F_r are

Answer 9

N

Question 10

the spring constant is

Answer 10

the amount of force required to stretch or compress a spring 1m

Question 11

The force applied is

Answer 11

the amount of force used on a spring to stretch or compress it

Question 12

The F_ris

Answer 12

the amount of force the spring provides to resist the applied force

Question 13

The elongation of a spring

Answer 13

is the change in length of a spring when lengthened under an applied force. It should NOT be confused with the length of the spring.

Question 14

The compression of a spring is

Answer 14

the change in length of a spring when the spring shortens under an applied force. It should NOT be confused with the length of the spring.

Question 15

The gradient of an elongation vs Force Applied graph is

Answer 15

equal to the spring constant, k

Question 16

What is the relationship between F_r and F_s?

Answer 16

They are equal in magnitude and opposite in direction whenever the spring is stationary or moving at a constant speed.

Question 17

What is the name of the mathematical relationship between the restoring force of a spring and the elongation of the spring?

Answer 17

direct relationship

Question 18

What measuring device is based upon Hooke’s Law?

Answer 18

the spring scale

Question 19

What is the main difference of Spring B compared to Spring A shown in the graph below.

Answer 19

• Spring B is a weaker spring.
• Spring B has a smaller spring constant.
• Spring B requires less force to stretch it the same distance as Spring A

Question 20

F_s=kx is known as what law?

Answer 20

Hooke’s Law

Question 21

_{State the symbol/variable for force applied on the spring}

Answer 21

Fs

Question 22

State the symbol/variable spring constant

Answer 22

k

Question 23

State the symbol/variable elongation or compression

Answer 23

x

Question 24

N is the unit of what quantities?

Answer 24

F, F_s and F_r

Question 25

N/m is the unit of what quantity?

Answer 25

k

Question 26

m is the unit of what quantity?

Answer 26

x

Question 27

The amount of force required to stretch or compress the spring 1m is called

Answer 27

the spring constant

Question 28

The amount of force used on a spring to stretch or compress it is called

Answer 28

The force applied

Question 29

The restoring force is denoted by what variable?

Answer 29

F_r

Question 30

N is the unit of what quantity(ies)?

Answer 30

F, F_s, F_r

Question 31

How can the spring constant, k be found on an F vs x graph?

Answer 31

The gradient

Question 32

What quantities are equal in magnitude and opposite in direction whenever the spring is stationary or moving at a constant speed?

Answer 32

F_r and F_s?

Question 33

A direct relationship has what properties?

Answer 33

• straight line
• constant slope
• passes through the origin, (0,0)

Question 34

This quantity is the change in length of a spring. It should NOT be confused with the length of the spring.

Answer 34

The elongation or compression of a spring

Question 35

What quantity is the amount of force the spring provides to resist the applied force?

Answer 35

F_r

Question 36

The spring scale is a tool designed to measure what quantity?

Answer 36

Force

Question 37

• Spring B is a weaker spring.
• Spring B has a smaller spring constant.
• Spring B requires less force to stretch it the same distance as Spring A

What would be true of the elongation vs Force applied graphs of springs A and B

Answer 37

B would have a smaller gradient (less steep)