HSA Physical Science 2

Question 1

Which form of energy is stored in a stretched rubber band?

Accepted Answer

Elastic potential energy

Answer

A stretched rubber band stores elastic potential energy due to its deformed shape; this energy is released when the band returns to its original form.

Question 2

A wave with a higher frequency will have:

Accepted Answer

A shorter wavelength

Answer

In a wave traveling at a constant speed, frequency and wavelength are inversely related — higher frequency means shorter wavelength.

Question 3

When you mix baking soda and vinegar together, bubbles form and the temperature drops. This is most likely a:

Accepted Answer

Chemical change

Answer

The formation of bubbles (a new gas) and a temperature change are signs that new substances have been produced, indicating a chemical change.

Question 4

Which simple machine is a wheel with a rope wrapped around it used to lift heavy objects?

Accepted Answer

Pulley

Answer

A pulley consists of a wheel and rope (or chain) that redirects or multiplies a force, making it easier to lift heavy loads.

Question 5

Which of the following correctly describes the Law of Conservation of Energy?

Accepted Answer

Energy cannot be created or destroyed, only transformed

Answer

The Law of Conservation of Energy states that the total energy in a closed system remains constant — it can change forms but cannot be created or destroyed.

HSA - Hawaii State Assessment Practice Test

HSA - Hawaii State Assessment Practice Test

HSA Physical Science 2