Elastic objects and potential Energy

Question 1

What is the letter equation for elastic potential energy?

Answer 1

Ee=1/2ke2

Question 2

What is the word equation for elastic potential energy?

Answer 2

Elastic potential energy (J) = 1/2 x spring constant (N/m) x
extension2 (m)

Question 3

What is the letter equation for kinetic energy?

Answer 3

Ek = 1/2 mv2

Question 4

What is the word equation for kinetic energy?

Answer 4

Kinetic energy (J) = 1/2 x mass (Kg) x velocity2 (m/s)

Question 5

What is the letter equation for gravitational potential energy?

Answer 5

Eg=mgh

Question 6

What is the word equation for gravitational potential energy?

Answer 6

Gravitational potential energy (J) = mass (kg) x
gravitational field strength (N/kg) x height (m)

Question 7

Which letter equation describes Hooke’s Law?

Answer 7

F = ke

Question 8

Which word equation describes Hooke’s Law?

Answer 8

Force (N) = spring constant (N/m) x extension (m)

Question 9

What type of energy is stored in a stretched elastic band?

Answer 9

Elastic potential energy

Question 10

What type of energy is stored in a squashed up tennis ball?

Answer 10

Elastic potential energy

Question 11

What needs to be applied for an object to change shape?

Answer 11

A force

Question 12

Define the term for an object returning to its original shape
after being stretched

Answer 12

Elastic deformation

Question 13

Define the term for an object not returning to its original
shape after being stretched

Answer 13

Inelastic deformation

Question 14

Identify the Law: “The extension of a spring is directly
proportional to the force applied to it.”

Answer 14

Hooke’s Law

Question 15

What sort of energy is stored in a bungee cord?

Answer 15

Elastic potential energy

Question 16

What do you call the point at which Hooke’s Law no longer
applies?

Answer 16

The limit of proportionality

Question 17

In a graph of Hooke’s Law, what happens at the limit of
proportionality?

Answer 17

Line no longer straight, it will curve