Elastic potential energy

Question 1

What is the formula for elastic potential energy?
A. E = 1/2kx^2
B. E = mgh
C. E = 1/2mv^2
D. E = Fd

Answer 1

A. E = 1/2kx^2

Question 2

In the formula E = 1/2kx^2, what does k represent?
A. Kinetic energy
B. Elastic modulus
C. Gravitational acceleration
D. Spring constant

Answer 2

D. Spring constant

Question 3

What is the unit of measurement for the spring constant k in the formula of elastic potential energy?
A. Joules
B. Newton
C. Joules/metre
D. Newton/metre

Answer 3

D. Newton/metre

Question 4

When a spring is compressed, what happens to its potential energy?
A. It decreases
B. It increases
C. It remains constant
D. It fluctuates

Answer 4

A. It decreases

Question 5

Which of the following factors affects the amount of elastic potential energy stored in a spring?
A. Mass of the object
B. Length of the spring
C. Material of the spring
D. Temperature

Answer 5

B. Length of the spring

Question 6

If the displacement of a spring is doubled, how does the elastic potential energy change?
A. It is halved
B. It doubles
C. It quadruples
D. It remains the same

Answer 6

C. It quadruples

Question 7

What is the relationship between the spring constant and the amount of potential energy stored in a spring?
A. Inverse
B. Direct
C. No relationship
D. Exponential

Answer 7

B. Direct

Question 8

If a spring has a higher spring constant, what can be said about its stiffness?
A. It is less stiff
B. It is more stiff
C. Stiffness remains constant
D. Stiffness is unrelated to spring constant

Answer 8

B. It is more stiff

Question 9

When a spring is stretched, what type of potential energy does it store?
A. Elastic
B. Kinetic
C. Gravitational
D. Mechanical

Answer 9

A. Elastic

Question 10

How does the gravitational potential energy of an object compare to elastic potential energy stored in a stretched spring?
A. They are equal
B. The gravitational potential energy is lesser
C. The elastic potential energy is lesser
D. There is no comparison

Answer 10

C. The elastic potential energy is lesser

Question 11

What is the SI unit of measurement for elastic potential energy?
A. Joule
B. Newton
C. Watt
D. Pascals

Answer 11

A. Joule

Question 12

What happens to the potential energy of a spring as its spring constant increases?
A. It decreases
B. It increases
C. It remains constant
D. It becomes negative

Answer 12

B. It increases

Question 13

In the formula E = 1/2kx^2, what does x represent?
A. Mass of the object
B. Initial position of the spring
C. Displacement of the spring
D. Final position of the spring

Answer 13

C. Displacement of the spring

Question 14

.Which of the following is an example of potential energy converting into kinetic energy in the context of a spring?
A. Releasing a stretched spring
B. Compressing a spring
C. Twisting a spring
D. Heating a spring

Answer 14

A. Releasing a stretched spring

Question 15

What phenomenon is responsible for a spring returning to its original shape after being stretched or compressed?
A. Elasticity
B. Friction
C. Inertia
D. Tension

Answer 15

A. Elasticity