Energy
Stored energy is called
Potential Energy
Which of the following objects would be classified as translucent?
Frosted Glass
Car Window
Black Paper
Frosted Glass
What is an electrical circuit?
the pathway through which electrical current flows
The invisible force that pulls objects to Earth and can act at a distance is called
Gravity
to pass through a substance or object without being absorbed
transmit
energy that causes transfer of heat or temperature between materials
thermal energy
Which material best demonstrates the absorption of light?
Sunglasses, Water, Mirror, or a Wall
A wall
Which term refers to light that bounces off objects?
reflection
A push or a pull can change an objects position. When an object changes position, it is set in
motion
Light traveling through a microscope is _______________.
(absorbed, refracted, reflected)
refracted
energy produced by a machine or moving parts
Mechanical Energy
Use a white board to draw the 4 things that happen when light strikes an object:
Hint: (think reflection, refraction, absorb, transmit)
reflection-bounces off
refraction-bends
absorbs- goes into
transmit- goes through
A fan uses electric energy to work. The fan transforms electrical energy to which form of energy?
mechanical energy
Which type of force will not change the motion of an object?
Equal or Balanced Forces
a force that slows or stops motion when objects rub together
friction
Give an example of how one form of energy transfers to another
Teacher check example
All of the following are examples of refraction EXCEPT __________.
A. plant stem that looks bent in a jar of water
B. words on a page that are being magnified with a magnifying glass
C. people looking at themselves in a mirror
D. light passing through a hand lens
C. people looking at themselves in a mirror
Electrical energy can be transformed into which of the following: (write down all that apply)
motion
sound
light
thermal energy
All of the above: motion (fan), sound (buzzer), light (lamp/flashlight) and thermal energy (toaster)
Equal Forces or Unequal Forces:
They change patterns of motion. Objects speed up, slow down, or change direction
Unequal Forces
energy stored in the chemical bonds of chemicals, such as batteries.
Chemical Energy
Which forms of energy are used as a power source for a light bulb? (Two types of energy)
Chemical and Electrical Energy
Objects look different when they are viewed through water because the light waves that travel through water are _______
bent or refracted
What components do you need to create your own flashlight?
Wires, Switch, Light Bulb, Battery
What is an independent variable?
What is being changed or tested in an experiment.
When almost all light passes through the medium, the object is most likely ------
Transparent