Changing Shape Flashcards

All 6 cards in this deck

Name the three ways a force can change the shape of an object.

Stretching, bending and compressing.

What forces are involved in stretching a spring?

e.g. a spring hanging from a clamp with a weight on the end

Two forces pulling in opposite directions — the weight pulling down and the clamp pulling up.

How many forces must act to change the shape of a stationary object, and why?

More than one — a single force would simply make the object move (accelerate) instead of deforming it.

What is meant by elastic deformation?

The object returns to its original shape/length when the force is removed.

What is meant by inelastic deformation?

The object does not return to its original shape/length when the force is removed.

True or false? A single force applied to a stationary object can stretch it.

False. One force would make it move; more than one force is needed to deform it.