Classifying Matter
Uses of Energy
Circuits & Electricity
Light
Mystery
100

Matter takes up space and has __________.

What is mass?
100

Bobby plays the drum in his band. What type of energy does he create when he beats the drum?

sound- When he beats the drum, the vibration of the drum creates sound waves that we hear. 
100

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.

100

Light travels in a...

straight line.

100

Salt that has completely dissolve in water is an example of...

a solution!

200

True or False

All metals are magnetic. Explain your thinking.

Not all metals are magnetic. While steel and iron are magnetic, copper is not.

200

Solar cells power solar calculators by changing light energy to __________ energy.

200

Thinking about circuits…

closed = complete

open = __________

incomplete

200

Light traveling through a pair of eyeglasses is

refracted, or bent

200

Which travels faster: light or sound?

Sound travels faster!

300

Items that float when placed in water are...

less dense than water!

300

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.

300
One of the most commonly used metals in electrical wires is copper because... 

it conducts electricity very well.

300

When light travels through prisms, it... 

300

Why do guitar strings make sound when you play the guitar?

The guitar strings vibrate.

400

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.

400

The circuit has four light bulbs and three switches. If Switch 1 is closed, which light bulbs will glow? Circle TWO correct answers.

https://docs.google.com/presentation/d/e/2PACX-1vTRW3gmwciyVLnd2ih0EiFZTTqEHRbHZI7wUNLC4o5FpYKkZs7J88A80AeurL2rstjSVt05Vmspkqmr/pub?start=false&loop=false&delayms=3000


bulbs 1 & 2

400

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? 

https://docs.google.com/presentation/d/e/2PACX-1vSh9TuWVRXFgvalNXTFmoJbr9PDuBNwA6GUJPsfqyw_SXpifi0cP77goMC946YwHjpad3Jb2UK0VrlP/pub?start=false&loop=false&delayms=3000

reflection, like in a mirror

400

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.

500

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.

500

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