Newton's 3 Laws
What is a push or pull on an object called?
Force
What is the formula for force?
f=m x a or force equals mass times acceleration
How do you convert from grams to kilograms?
Move the decimal 3 places to the left or divide by 1,000
What unit(s) did we use for mass?
grams and/or kilograms
Fill in the blank: As the drag car mass increases, the acceleration _________.
Which Law? The cars that are lighter go faster & the cars that are heavier go slower.
What is the formula for acceleration?
a = f/m or acceleration equals force divided by mass
How do you convert from millimeters to centimeters?
Move the decimal 1 place to the left or divide by 10
What unit did we uses for force?
Newtons
How do your resolve the problem of rolling friction?
Reduce the weight or make it lighter
Which Law? A rocket is launched into orbit. As the gases escape upon launch, the rocket goes up.
Newton's 3rd Law
Calculate force: The mass of an object is 25 kg and is accelerating at 10 m/s2.
250 Newtons
The mass of your car is 55 grams. Convert this to kilograms.
.055
What unit did we use for acceleration?
m/s2
Since force is divided by mass to find acceleration, what kind of number do you want as your mass that you divide by?
a smaller or lower number
Which Law? A car is traveling at a constant speed and suddenly stops.
Newton's 1st Law
Calculate the acceleration: A drag car's CO2 cartridge exerts a force of 18 Newtons. The car's mass is 75 grams.
240 m/s2
The car height could not be over 75 millimeters. What is this in centimeters?
7.5 centimeters
To meet the drag car requirements, we converted millimeters to what?
centimeters
Fill in the blank: A car is said to be _______ when it is smooth, sleek, and disrupts very little air.
Aerodynamic
move, move
Calculate force: The mass of an object is 125 grams. The acceleration is 15 m/s2. Round to the nearest hundredth.
1.88 Newtons
A bowling ball weighs 30 kilograms. How many grams is this?
30,000 grams
Your _____ stays the same regardless of where you are at in the solar system, but your _____ changes with your location.
mass, weight
What type of friction is caused by air moving past the body of the car?
Fluid Friction