What is speed?
speed = distance/time
True or False: distance can be both positive and negative
False
Displacement can be both positive and negative, not distance.
How many variables can you change in an experiment to have a controlled experiment?
Only one
Two hydrogen atoms were walking down the street. The first says to the second, "I think I've lost an electron". The second atom asks, "Are you sure?" First one replies, "Yeah, I'm _________".
Positive
Which country is Sir Isaac Newton from?
Great Britain
A disturbance that transfers energy, not matter, from one place to another is called a
wave
Kilometers per hour (km/h) are units of
speed
What is an independent variable (IV)?
Something you change
What did the thermometer say to the graduated cylinder? You maybe graduated, but I have more __________ .
degrees
The atomic number of an element shows the number of____________
Protons
Mass over volume (m/V) is defined as
density
What is the international system of units called
SI System of Units
(from the French Le Système International d'Unités)
What is the dependent variable in this problem:
Ivan and Braxton want to know if stretching a rubber band at a different lengths affects how far it flies. They will use cm to measure.
what you measure: how far does the rubber band fly
Why are chemists good at solving problems?
They have all the solutions.
Imagine an astronaut is on a tether line outside of her spaceship with several tools fixing a problem. Suddenly the tether line breaks and she starts floating away. What should she do to get back to the spaceship?
Throw the heaviest tool with as much force as possible opposite to the direction she wants to fly in.
Frost on leaves is an example of which state of matter change?
Deposition
Frequency is measured in _________
Hertz
What do you do at the end of an experiment (in your conclusion)?
You accept or reject your hypothesis
Did you hear about the horrible accident where the physicist accidentally chilled himself to absolute zero? He's ___________ now.
0K
When you turn on a toaster you transfer __________ energy into ___________ energy.
electric energy into thermal energy
Name all the EM waves
Radio, Micro, Infrared, Visible Light, Ultraviolet, X-ray, Gamma
Name a unit of weight (in physics)
Newton
Weight is a measure of the force of gravity on a physical object and is measured in Newtons.
Which of these targets show precise but not accurate dart hits?
B
The darts are all together, but not in the center.
What did one tectonic plate tell the other when he bumped into him?
Sorry, my fault.
The type quantities that have both a magnitude and direction are called
vector quantities