Tensión (física)

Materials tend to stretch when stressed, though sometimes this is hard to measure. Conversely, compression is the opposite effect. Both stretching and compression are forces, and like any force, they are measured in newtons.

What happens to most materials when stress is applied?

• They melt.

• They change color.

• They stretch to some extent.

• They become brittle.

How is the extent of stretching in materials often described?

• Visible

• Predictable

• Inestimable

• Easily measurable

What is the opposite effect of stretching in materials?

• Condensation

• Evaporation

• Compression

• Expansion

In what unit is compression measured?

• Watts

• Pascals

• Joules

• Newtons

Which of the following is true about forces like compression?

• They are measured in liters.

• They are measured in newtons.

• They are measured in kilograms.

• They are not measurable.