Which of the following can be made up of two or more atoms of the same element or different elements 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
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
Electric current is measured in
Amperes
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
Two main types of waves
transverse and logitudinal
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
What kind of wave does sound travel in?
longitudinal wave/ Compression wave
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 example of chemical energy being transformed into mechanical energy?
a. blender
b. ceiling fan
c. flashlight
d. human body
d. human body
400
Name the seven types of visible light waves from highest energy to lowest energy
Violet, Indigo, Blue, Green, yellow, Orange, Red
500
The Law of conservation of matter states that...
matter cannot be created or destroyed
500
a non-contact force that attracts objects toward one another
gravity
500
What is required to create an electromagnet?
battery, wire, and an iron core
500
A lightbulb changes _________ energy to ________ energy