Show:
The Structure of Matter
Force & Motion
Electricity & Magnetism
Energy
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
A balloon is rubbed all over with wool. The balloon will now attract the wool because the balloon and the wool a. are magnets b. have opposite charges c. have like charges d. have neutral charges
b. have opposite charges
100
Name 5 types of energy
mechanical, sound, chemical, electrical, heat, nuclear, light
100

Which of the following is considered a vacumm? 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
Electric current is measured in
Amperes
200

What is energy?

the ability to do work
200
What do you call one full, complete wave? (often measured from the crest of one wave to the crest of the next wave)

wavelength

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

An object in motion has ________________ energy.

kinetic

300

How "often" a wave occurs

frequency

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
What is the purpose of a switch in an electric circuit? a. to change the direction of the current b. to provide a push for the current c. to allow the electric current to be opened or closed d. to increase the electric power to the load
c. to allow the electric current to be opened or closed
400

An object at rest on the top of a hill has lots of __________ energy

potential

400

Which type of wave has the most energy? A. visible light  B. radio waves  C. x-rays  D. microwaves

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
What are the two basic kinds of circuits?
series and parallel
500
A lightbulb changes _________ energy to ________ energy
electrical to thermal
500

The bouncing back of light as it hits a surface

reflection