Hooke's Law _ GCSE Physics

The video tutorial explains how elastic objects like springs store elastic potential energy when stretched. It introduces the concept of extension and describes Hooke's law, which states that the extension of an elastic object is directly proportional to the force applied, as long as the limit of proportionality is not exceeded. The tutorial also covers how to calculate the spring constant, which is a measure of stiffness, through experimentation. The greater the spring constant, the stiffer the spring.

What happens to elastic objects like springs when they are stretched?

• They store elastic potential energy.

• They store kinetic energy.

• They become permanently deformed.

• They lose energy.

What is the term used to describe the increased length of a stretched elastic object?

• Deformation

• Extension

• Tension

• Compression

According to Hooke's Law, what is the relationship between force and extension in a spring?

• They are unrelated.

• They are directly proportional.

• They are equal.

• They are inversely proportional.

What is the unit of measurement for the spring constant?

• Meters

• Newtons

• Newtons per meter

• Joules

What does a higher spring constant indicate about a spring?

• It is more flexible.

• It is longer.

• It is weaker.

• It is stiffer.