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level: Forces and distortion

Questions and Answers List

level questions: Forces and distortion

Question	Answer
An interaction that can pull, push, or rotate an object, resulting in changes to its motion.	One Force Acting On An Object
What can one force do to an object?	One force can pull, push, or rotate an object.
The requirement for two forces to act in tandem to change the shape of an object.	Two Forces Acting On An Object
What is necessary to change the shape of an object?	Two forces need to act together to change the shape of an object.
Forces applied in opposite directions that cause an object to bend.	Bending Forces
What can two forces do to an object?	Two forces can bend, stretch, or compress an object.
Forces applied in opposite directions that cause an object to stretch.	Stretching Forces
What happens to an elastic band when pulled at both ends?	An elastic band stretches if it is pulled at both ends.
Forces applied in opposite directions that cause an object to compress.	Compressing Forces
What happens to a spring when pushed at both ends?	A spring compresses if it is pushed at both ends.
An example demonstrating the bending of an object when pushed downwards at both ends.	Bending Example
What happens to a plastic ruler when pushed downwards at both ends?	A plastic ruler bends if it is pushed downwards at both ends.
A flexible band made of elastic material that can stretch when pulled at both ends.	Elastic Band
What object stretches when pulled at both ends?	An elastic band stretches if it is pulled at both ends.
A coiled or compressed elastic object that can store and release mechanical energy.	Spring
What object compresses when pushed at both ends?	A spring compresses if it is pushed at both ends.
The shape of an object can be changed temporarily or permanently by forces.	Forces and Shape Change
How can forces affect the shape of an object?	Forces can change the shape of an object temporarily or permanently.
When objects are stretched, compressed, or bent, they change shape.	Shape Change by Forces
What happens to objects when they are stretched, compressed, or bent?	They change shape.
A temporary change in the shape of an object is called elastic distortion. This means that when the forces are removed from the object, it goes back to its original shape.	Elastic Distortion
What is elastic distortion?	Elastic distortion is a temporary change in shape where the object returns to its original shape when the forces are removed.
Inelastic distortion is a permanent change in the shape of an object. This means that when the forces are removed from the object, it doesn't go back to its original shape.	Inelastic Distortion
What is inelastic distortion?	Inelastic distortion is a permanent change in shape where the object does not return to its original shape when the forces are removed.