Graphs
Which graph is best at showing how an x affects a y?
Line graph
What forces act upon the moon, if any?
Gravity
What is Newton's 2nd Law equation?
F=ma
Ms. Lerman does 500 Joules of work in 100 seconds at the gym. Calculate how much power she uses.
5 Watts
What is 1,000 in scientific notation?
1x103
Which graph is good for comparing data?
Bar graph
Draw a FBD describing ALL the forces acting upon a box as you are pushing it to the right
(Picture)
What is the Fg (force of gravity) on Earth?
g=9.8m/s2
What are the two types of mechanical energy?
Kinetic and Potential
How many joules are in 1 kilojoule?
1,000 joules
True or False: a line graph is only useful for showing change over time
False-- it's very good for that, but can show other things, too
What force acts upon an object sitting on a surface?
Fn (Normal force)
If I have a mass of 10kg and accelerate at a rate of 3m/s2, how much force am I applying to the ground?
30 Newtons
What is the pivot on a lever called?
Fulcrum
How would 1,900,000 look in scientific notation?
1.9x106
True or False: if you have data points 2, 4, and 8, you don't have to bother to write '6' on the scale
False-- a scale should always go up evenly, even if it includes numbers that aren't in your data set!
What is Newton's 1st Law of Motion?
An object in motion tends to stay in motion unless acted upon by another force
A man has a mass of 80kg. What is his weight (Fg)?
784 Newtons
What is the law of conservation of energy?
Energy can neither be created nor be destroyed. It can only be transferred or transformed from one form to another.
If I have 5,000mL of solution, how many liters is that?
5 liters
Draw a quick sketch of a graph showing something going down over time
(Picture)
What is Newton's 3rd Law of Motion?
For every action, there is an equal and opposite reaction
What is my acceleration if I have a mass of 20kg and exert a force of 100N?
5m/s2
What is the equation for work?
W=Fd
How many millimeters in a kilometer?
1,000,000mm