Show:
Matter
Force & Motion
Magnetism
Energy
Light Waves
100
Which of the following can be made up of two or more atoms of the same element, chemically bonded? a. atom b. mixture c. compound d. molecule
d. molecule
100
The speed in a particular direction
velocity
100
With magnets, opposite poles: a. attract b. repel

a. attract

100

Name 2 forms of energy

potential and kinetic

100

Which of the following is not a medium? a. space b. air c. water d. wood

a. space

200
Which of the following is smaller than a single atom? a. proton b. mixture c. element d. solution
a. proton
200
the rate of change in velocity
acceleration
200
Describe what the magnetic field lines will look with attracting magnets.

The lines from one pole of one magnet will connect to the opposite pole of a different magnet.

200
Which of the following is not a form of potential energy? a. gravitational energy b. chemical energy c. light energy d. nuclear energy
c. light energy
200

Three things that light can do

reflect, absorb, transmit

300
A student is investigating a sample of an element. The student observes that the element is solid, shiny, and can be bent into a new shape. The student is most like observing a. carbon b. hydrogen c. aluminum
c. aluminum
300
What happens to an object of the forces acting on it are balanced? a. the motion changes direction b. the motion does not change c. the motion speeds up d. the motion slows down
b. the motion does not change
300
Which of these is a insulator? a. a copper wire b. a silver spoon c. a plastic coating on a wire d. an aluminum coating on a wire
c. a plastic coating on a wire
300
The law of conservation of energy states that...
although energy may change from one form to another, energy is neither created nor destroyed
300

The distance from one peak of a wave to the next

wavelength

400
Which of the following is a chemical symbol representing an element? a. C b. CO c. CO2 2. H2O
a. C
400
A person produces the least friction moving across which of these surfaces? a. carpet b. ice c. sand d. wood floor
b. ice
400

Describe two ways to increase the strength of a magnetic force between two magnets.

Use stronger magnets and moving the magnets against the magnetic force closer to a magnet. 

400
Explain the difference between mass and weight

Mass is the amount of matter ("stuff") in an object.  Weight is a measure of gravity's pull on an object.

400
Name the seven types of EM waves from highest energy to lowest energy
gamma, x-ray, uv light, visible light, infrared light, microwaves, radio waves
500
The Law of conservation of matter states that...
matter cannot be created or destroyed
500
a noncontact force that attracts objects toward one another
gravity
500

List two ways to increase the magnetic force of an electromagnet.

increase the number of wraps of wire and add more batteries to the magnet.

500

What is a system?

a set of interacting parts forming a complex whole

500

Name the two reasons why Australia has the highest skin cancer rates in the world

More UV Light than other locations and more people with low melanin levels