Forces And Elasticity (GCSE Physics)

When two identical springs support a mass m in parallel and give extension x, what is the extension compared with using one spring supporting the same mass?

When gear A turns clockwise and meshes directly with gear B, what is the direction of rotation of gear B?

Plastic deformation of a material means:

What is meant by the elastic limit of a material?

Which formula gives the elastic potential energy stored in a stretched spring with spring constant k and extension x?

Two identical springs, each with spring constant 300 N/m, are connected in parallel and both support the same load. What is the effective spring constant of the pair?

A spring with spring constant 200 N/m is stretched 0.10 m. How much elastic potential energy is stored in the spring?

Stress and strain are defined as stress = force/area and strain = extension/original length. What are their SI units?

Two identical bungee cords each have spring constant 735 N/m and each is stretched by 8.0 m when a pod is released. The pod plus rider has mass 240 kg. Assuming no energy losses, what is the maximum rise (height gained) the pod achieves (in m)?

A student measures force–extension for a spring and obtains a straight line through origin up to a point, and beyond that the graph curves. The point where linearity ends is called the:

A metal spring of k = 800 N/m is compressed by 0.05 m. What is the elastic potential energy stored?