Physical Science Assessment

______ is the state of matter given the following properties:

(a) shape and volume are not fixed

(b) can be compressed

K.PS1.1

Physical Property or Chemical Property?

The roof tarnished after a few months of exposure to rainwater is an example of _________. 3.PS1.3

Why are gases compressible as compared to solids and liquids?

3.PS1.2

• Gas particles are in random motion.

• Gas particles have no forces of attraction between each other.

• Gas particles are very disorderly.

• Gas particles have very weak forces of attraction which makes them far apart from each other.

As a substance changes in state from gas to liquid to solid, what is happening?

5.PS1.1

• The substance gets heated, and thus it is absorbing energy.

• The substance gets heated, and thus it is losing energy.

• The substance gets cooled, and thus it is absorbing energy

• The substance gets cooled, and thus it is losing energy.

Heterogeneous mixture is a type of mixture with a non-uniform composition.

7.PS1.3

• True

• False

Sarah travels 100 meters in 20 seconds. Her average speed is _______. (Speed = Distance/Time)

2.PS3.1

• 2.33 m/s^2

• 1 m/s^2

• 1.67 m/s^2

• 1 m/s

Describe the relationship between mass and kinetic energy. (Remember: KE = 1/2 mv²)

6.PS3.2

• When I double the mass I also double the kinetic energy.

• When I double the mass I cut the kinetic energy in half.

• When I double the mass I quadruple the kinetic energy.

When finding the net force acting on an object, if the forces are moving in the same directions you must...

2.PS2.3

What is the net force acting on the box?

2.PS2.3

• 18 N to the left

• 18 N to the right

• 82 N to the left

• 82 N to the right