Kinetic and Potential
Which of the following statements is TRUE?
a. The smaller an object is, and the faster it moves, the more kinetic energy it has.
b. The heavier an object is, and the slower it moves, the more kinetic energy it has.
c. The heavier an object is, and the faster it moves, the less kinetic energy it has.
d. The heavier an object is, and the faster it moves, the more kinetic energy it has.
d. The heavier an object is, and the faster it moves, the more kinetic energy it has.
What does a simple machine do?
Makes work easier
This type of heat transfer is through fluids (gas and liquids)
Convection
Draw a transverse wave. Label the crest and trough.
....
A child at the top of a slide is a good example of ....
Potential enegy
What is potential energy?
Stored energy
A hammer is what type of simple machine?
A lever
This type of heat transfer mostly happens in solids
Conduction
put the following waves in order from longest to shortest (weak to strong): Ultraviolet, Gamma, Infrared, Xrays, Radio, Visible light
Weakest to Strongest:
Radio, Infrared, Visible, Ultraviolet, Xrays, Gamma
A car stopping at a red light is a good example of ...
Friction
What is kinetic energy?
energy in motion (movement)
What simple machine is used to split an object apart?
(hint: an axe and a knife are this type of object)
A wedge
This type of heat transfer does not need matter as a medium. It is how we get energy from the Sun.
Radiation
Name the 3 behaviors of waves...
Reflection
Transmission
Absorption
What does a thermometer measure?
(The answer is NOT Temperature)
The amount kinetic energy a substance has
What is it called when an object moves from one place to another?
Work
This simple machine holds objects together
Screw
Heat energy always moves from...
Hot to Cold
Why does a black surface get hotter when in the Sun
Black absorbs all colors of the spectrum and does not reflect colors. It gets hot from absorption.
Give an example of Conduction
........
What is the measurement used for kinetic energy?
Joule
This simple machine reduces friction.
Wheel and axle
A material that does not conduct heat through it is called ...
An Insulator
Which waves from the EM Spectrum are described as "Heat Waves"
Infrared
State the Law of Conservation of Energy
Energy cannot be created or destroyed, only transferred from one form to another