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Flashcards in Forces & Motion Deck (14):
1

What is an elastic deformation?

When an object returns back to its original length after being stretched or compressed

2

What is an inelastic deformation?

When an object does not return back to its original length after being stretched or compressed

3

Define the term extension.

The increase in length when an object is stretched or compressed

4

What is the equation relating spring constant and force?

Force = spring constant x extension

5

What are the units for spring constant?

N/m

6

Name one thing which means that the equation relating spring constant and force would not work.

The elastic limit is exceeded / the object is stretched or compressed too much (once the load is removed it won't return back to its original length)

7

What component of a force against extension graph would be the spring constant?

The gradient of the line

8

How would you calculate elastic potential energy with a force against extension graph?

Area under the graph

9

Give an example of an object that stores elastic potential energy.

A spring

10

True or false?

A force may change the shape of an object.

True

11

Define the term deformation.

To change shape

12

Give another word for compression.

Squashed

13

How would you find the spring constant of a material?

Carry out experiments

14

True or false?

The spring constant of all materials are the same.

False
Each object has a different spring constant