Matter takes up space and has __________.
Bobby plays the drum in his band. What type of energy does he create when he beats the drum?
A student built a circuit using copper wires, a battery, a light bulb, and a switch. Which of these objects is the source of energy for the circuit?
The battery is the source of energy for the circuit.
Light travels in a...
straight line.
Salt that has completely dissolve in water is an example of...
a solution!
True or False
All metals are magnetic. Explain your thinking.
Not all metals are magnetic. While steel and iron are magnetic, copper is not.
Solar cells power solar calculators by changing light energy to __________ energy.
electrical
Thinking about circuits…
closed = complete
open = __________
incomplete
Light traveling through a pair of eyeglasses is
refracted, or bent
Which travels faster: light or sound?
Sound travels faster!
Items that float when placed in water are...
less dense than water!
When a fan is blowing cool air, what form of energy is being used to create the breeze?
The fan is using electrical energy but it is the MECHANICAL energy of the spinning blades that is creating the breeze.
it conducts electricity very well.
When light travels through prisms, it...
refracts and changes direction.
https://socratic.org/questions/what-happens-when-light-goes-through-a-prism
Why do guitar strings make sound when you play the guitar?
The guitar strings vibrate.
Analyze the following 4 samples of matter.
Samples 1 & 3
What 2 types of energy are used to create energy in turbines? https://www.youtube.com/watch?v=RaRc0oHBk5M
thermal and mechanical
The thermal energy from the steam causes the blades to spin.
The circuit has four light bulbs and three switches. If Switch 1 is closed, which light bulbs will glow? Circle TWO correct answers.
bulbs 1 & 2
A picture of trees, clouds, and a pond is shown. Which process did light undergo on the pond’s surface to produce the image of the trees and clouds?
reflection, like in a mirror
Which activities require for light to be refracted before reaching the eyes of the student? Select TWO correct answers.
Students see themselves in a mirror.
A student views an insect through a hand lens.
A student looks at a piece of paper.
A student sees an image on the surface of a puddle.
Students look at a rainbow after it rains.
A student views an insect through a hand lens.
Students look at a rainbow after it rains.
J)
K-oil
L- safety pin
M- sugar cube
N- rubber ball
https://www.youtube.com/watch?v=9aNGGCdf_hA
Charles Strite invented the pop-up toaster almost 100 years ago! What type of energy transfer takes place in the pop-up toaster?
Electrical energy changes to thermal energy
Even though it requires mechanical energy to push the lever down, the toaster would not work without ELECTRICAL energy.
Take a look at this circuit:
D) Lightbulb 1 will be on, but lightbulb 2 will be off.
Describe how light behaves with the 3 different objects.
refracted
absorbed
reflected
Which of the following does not require electrical energy in order to work?
hitting a fly swatter
pushing a doorbell to make sound
strumming a guitar
turning on the stereo
hitting a fly swatter
strumming a guitar