SI Units/Sig Figs
A little Algebra
Describing Motion
Symbols and Such
Physics, Phenomena, and Paradoxes. Oh my!
100
The base unit used to measure length
Meter
100
a=V/t
How would you rearrange this problem to solve for 't'?
t=V/a
100
Term meaning "change in position"
Displacement
100
You see that an equation has the letter 't' in it. What does letter stand for?
Time
100
This mathematical phenomena is observed all over the universe. What is it called?
Fibonacci Sequence
200
The base unit used to measure time
seconds
200
vf=vi+a(t)
How would you rearrange this equation to solve for 'vi'?
vi=vf-a(t)
200
A change in velocity divided by a change in time
acceleration
200
In a word problem, you see that the unit used next to a number is "m/s". We know then that that is an object's ______.
Velocity
200
The first step in the scientific method is what?
Asking a question or identifying an issue. BEING CURIOUS
300
The base unit used to measure mass
gram (kilogram)
300
Convert 1.4 km to meters
1400 meters
300
A change in position divided by a change in time
Velocity
300
In a word problem, you see that the unit used next to a number is m/s2. Therefore, that is the object's ______.
Acceleration
300
A seemingly absurd or self-contradictory statement is known as a:
Paradox
400
In these types of problems, we are only concerned with the amount of sig figs to the right of the decimal
Addition/Subtraction
400
Convert 2.4 hours to seconds
8,640 seconds
400
What is the key difference between velocity and speed?
Velocity can indicate a direction, speed cannot
400
You see the following symbol: Δx. You know that is the symbol used for:
Displacement
400
This paradox uses an animal trapped in a box to explain quantum superposition--simply put: two different realities can both be true at the same time until directly observed
Schrodinger's Cat
500
A problem gives you an object's velocity in terms of km/h. What will you typically have to convert that to?
m/s
500
convert 42 km/h to m/s
11.7 m/s
500
Cecelia flew from Omaha to Los Angeles, then back to Omaha (about 3,000 miles total). What is her displacement?
0 m
500
You are given a final velocity and an initial velocity. How do we solve for: Δv
Final velocity-initial velocity
500
What question did Olber's paradox address?
Why is the night dark?
600
Consider the problem: An object travels with a velocity of 4.590948 m/s in 1.4 seconds. What is the object's acceleration?
What is the "proper" amount of significant figures to have in the solution to this problem?
2
600
An object starts from rest. You are given the displacement and acceleration. Which equation are you using to solve for final velocity?
vf2=2ax
600
When the only force acting on an object is gravity, the object is said to be in:
free fall
600
What does the "Delta" symbol look like and what does it mean?
Time
600
What is time dilation?
The concept that time can be stretched
700
What is the magnitude of gravity's acceleration on Earth?
-9.81 m/s2
700
You see that the symbol for displacement has changed from Δx to Δy. What does this mean?
Displacement is now in the vertical direction and not the horizontal direction
700
In the Twin Paradox, which twin ages more slowly?
The traveling twin