Understanding Springs and Hook's Law

The video tutorial explains the behavior of springs under tensile and compressive forces. It introduces key terminology, demonstrates how to measure spring extension using a mass hanger, and explains Hook's Law, which states that the extension of a spring is proportional to the force applied, as long as the limit of proportionality is not exceeded. The concept of spring constants is discussed, highlighting how different springs have varying stiffness. The video also covers how to interpret graphs showing the relationship between force and extension.

What happens to a spring when a tensile force is applied?

• It breaks.

• It gets longer.

• It gets shorter.

• It remains the same.

In the context of springs, what does a compressive force do?

• It breaks the spring.

• It has no effect on the spring.

• It makes the spring shorter.

• It makes the spring longer.

What is the term used to describe the extra length a spring gains when stretched?

• Compression

• Elasticity

• Tension

• Extension

What is the original length of a spring called before any force is applied?

• Natural length

• Original length

• Base length

• Initial length

According to Hook's Law, what is the relationship between force and extension?

• Force is equal to the square of extension.

• Force is inversely proportional to extension.

• Force is unrelated to extension.

• Force is proportional to extension.

What happens to the extension of a spring as more force is applied?

• The extension remains constant.

• The extension decreases.

• The extension becomes zero.

• The extension increases.

What does the spring constant (K) indicate?

• The material of the spring.

• The color of the spring.

• How much a spring extends under a certain force.

• The weight of the spring.

If two springs have different spring constants, what can be inferred?

• They will compress the same amount under the same force.

• They will break under the same force.

• They will have different extensions under the same force.

• They will extend the same amount under the same force.

What does the gradient of the force vs extension graph represent?

• The weight of the spring.

• The color of the spring.

• The spring constant.

• The length of the spring.

Which of the following is true about a stiff spring compared to a lazy spring?

• A stiff spring compresses more under the same force.

• A stiff spring extends more under the same force.

• A stiff spring has a higher spring constant.

• A stiff spring has a lower spring constant.