Sample Item 15 SC.8.P.8.4
Matthew has six cubes of different materials. Each cube has a mass of 10 grams (g).
Matthew sorts the cubes into two groups using one physical property.
GROUPS OF DIFFERENT MATERIALS
Group 1 Cubes
Group 2 Cubes
Aluminum
Glass
Copper Plastic
Steel
Wood
Which physical property did Matthew most likely use to sort the cubes into two groups?
A. density
B. magnetism
C. melting point
D. electrical conductivity

c. rb

explanation:

the atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

the force on the thing and the distance the force moves the thing