How might the shape of an object change if forces act away from each other in a straight line?
It might extend
It might compress
It might bend
How might the shape of an object change if forces act towards each other in a straight line?
Which word describes an object that will return to its original shape when forces are removed?
Plastic
Linear
Elastic
At what point does the behaviour of a spring tend to become non-linear?
Plastic limit
Elastic limit
Inelastic limit
What is the unit for the spring constant?
Newton-metres (Nm)
Newtons per metre squared (N/m²)
Newtons per metre (N/m)
What is the name for energy stored by a stretched spring?
Elastic potential energy
Gravitational potential energy
Kinetic energy
Which equation gives the energy stored by a stretched spring?
Energy transferred in stretching = spring constant × extension
Energy transferred in stretching = 0.5 × (spring constant)2 × extension
Energy transferred in stretching = 0.5 × spring constant × (extension)2
A spring extends elastically by 10 cm when a force of 20 N is applied to it. What force would be needed to extend the spring by 5 cm?
40 N
10 N
5 N
A spring extends elastically by 0.1 m when a force of 2 N is applied. What is the value of its spring constant?
0.2 N/m
0.05 N/m
20 N/m
How can the work done in stretching a spring be calculated from a force-extension graph?
By calculating the gradient
By calculating the area under the graph
By calculating the y-intercept