Directions: The picture below shows the path of a ball thrown into the air. It leaves the hand at point R, hits the peak of the throw at point S, and falls toward the ground at point T. Use the picture to answer any questions that follow.
Multiple Choice Question
At which point(s) does the ball have maximum potential energy and minimum kinetic energy?
A.
points R and T
B.
points S and T
C.
point S, only
D.
point T, only
D. point T, only
A glow stick is a plastic tube that contains two separate liquids. When the liquids are mixed, they glow. The diagrams show the process that causes a glow stick to emit light.
Based on the diagrams, what energy transformations occur when using a glow stick?
A.
Chemical energy cracks the inner tube, which starts a reaction that transforms thermal energy into light energy.
B.
Thermal energy cracks the inner tube, which starts a reaction that transforms potential energy into light energy.
C.
Mechanical energy cracks the inner tube, which starts a reaction that transforms chemical energy into light energy.
D.
Potential energy cracks the inner tube, which starts a reaction that transforms mechanical energy into light energy.
A. Chemical energy cracks the inner tube, which starts a reaction that transforms thermal energy into light energy.
Which of the following types of energy transfers can take place when matter is not present?
A.
heat
B.
conduction
C.
radiation
D.
convection