CHEMISTRY
DEFINE THAT TERM
FORCES AND FRICTION
ENERGY FOR ALL
ONE WORD ANSWERS
100
This part of the atom has a negative charge.
What is an electron.
100
What do we call the process when matter changes from a gas to a liquid?
It is called condensation.
100
This type of friction does not move.
What is static friction.
100
Energy from the sun is called_____________
What is electromagnetic energy.
100
What type of simple machine is a see saw?
What is a lever (1st class)
200
is burning a physical or chemical change?
What is chemical.
200
What is the formula for speed?
What is distance divided by time. D/T
200
Which surface has less friction, a dirt road or a wet highway road?
What is a wet highway road.
200
This type energy is dependent on mass and speed.
What is kinetic energy.
200
This is the scientific term for stored energy.
What is potential.
300
How many different elements in a molecule of water?
What is 2. Hydrogen and Oxygen.
300
Which simple machine uses gravity to its advantage?
What is a pulley.
300
In order to have a net force of zero, the forces need to be _________________
What is balance. (accept equal or the same)
300
Your uneaten lunch is an example of this type energy.
What is potential. (or chemical potential)
300
A material that transmits light BUT scatters it is called this.
What is Translucent.
400
What makes an atom neutral?
What is an equal number of proton and electrons.
400
what is the first part of the eye light passes through?
What is cornea.
400
Why do we consider a carousel (merry go round) to be accelerating?
Because the horses are constantly changing direction. Acceleration is the a change in speed, direction or both.
400
What direction does heat move?
What is from warmer to cooler.
400
Tightening strings on a guitar will ___ the pitch.
What is increase (higher)
500
in a chemical equation, where would we find the reactants? to the left or right of the yield sign?
What is to the left.
500
Between a 20g ball, 50 g ball and a 15 g ball, which has the greatest inertia?
What is the 50 g ball. (most mass)
500
This force allows all objects on Earth to fall at a constant rate.
What is gravitational pull. (9.8m/s)
500
Which wave has the greatest energy: low pitch/low amplitude, low pitch/high amplitude; high pitch/high amplitude, high pitch/ low amplitude?
What is high pitch/high amplitude.
500
Which has the shortest wavelength red of infrared?
What is RED! Shorter wavelength=higher frequency.
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