History
Random
Formula's
Word Problems
Riddles
100
Force is a ____ or ____.
Force is a push or pull.
100
What does F.B.D. stand for and give one reason why is it used.
F.B.D. - Free Body Diagram (Used to help solve word problems, Shows all of the forces acting on an object, Helps determine the motion of an object,)
100
What is the formula for Fnet? (Arrows above the F)
Fnet = F1 + F2 + F3 +.... (Arrows above the F's)
100
Construct an F.B.D. of someone pulling a wagon to the east on a very windy day.
-Fa (applied) -Far (air resistance) -Ff (friction) -Fg (gravtity) -FN (normal)
100
If 7 apples fell on Issac Newton's head, and he took away 3, how many does he have.
He has 3.
200
What were the four elements that Earth was believed to be made up of?
Earth, water, air, and fire
200
As acceleration increases, the net force ______.
As acceleration increases, the net force increases.
200
Finish the formula and say what it is used to find: F_ = 9.__N/__ x m
Fg = 9.81N/kg x m (force of gravity, mass of an object)
200
State the action and reactions pairs when a baseball hits off of the bat.
A: The bat hits the baseball forward R: The baseball hits the bat backward
200
What weighs more, a kilogram of feathers, or a kilogram of bricks? (weight not mass)
They weigh the same.
300
What did Galileo believe about all object's natural state.
To keep moving.
300
What is the different between Fe and FE (Arrows above the F's)
Fe = Elastic force, FE = Electric force (Arrows above the F's)
300
What is the formula for Newton's third law, "For every action force there is an equal and opposite reaction force"?
F a on b = -F b on a (arrows over the F's)
300
What is the net force required to accelerate a car at a rate of 2.36m/s* if the car has a mass of 2100kg? HINT- use the formula Fnet = m x a (Arrows above the F)
Fnet = 4956N (Arrows above the F)
300
How can you throw a ball with as much force as you can, to only have it come back to you, even if it doesn't bounce off anything?
Throw the ball straight up in the air.
400
Albert Einstein discovered that gravity is caused by ____ ___ing the space-time.
Albert Einstein discovered that gravity is caused by mass bending the space-time.
400
Give the definition for: -Interpolation -Extrapolation -Calculation
Interpolation: between measured points, Extrapolation: beyond measured points, Calculation: an possible point
400
What is the formula for Newton's second law?
Fnet = ma (Arrows above the F)
400
Find the net force acting on a chair being pushed across the floor to the west with a force of 19.67N, and a normal force of 11.43N, and the friction with a force of 14.725N?
Fnet = 4.945N [W] (arrow over the F)
400
If an electric train is going east at 60 km/h and there is a westerly wind going against the train, which way does the smoke blow from the train drift?
There is no smoke coming from electric trains.
500
What are Isaac Newton's three law's, in order, starting from the first one he created.
1. An object in motion tends to stay in motion, and an object at rest tends to stay at rest, 2. The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to the mass of the object, 3. For every action force there is an equal and opposite force
500
What are the four fundamental forces?
-gravitational -electromagnetic -weak nuclear -strong nuclear
500
Finish: N =
N = kg m/s* ( * = to the power of two)
500
Christmas is soon and David is looking for a Christmas tree. He purchased a tree with a mass of 52.7kg. To get it in his house, he had to use 102.95N of force, at a constant speed. Determine the coefficient of friction?
Uk = 0.1991 (0.2 rounded), (Uk - coefficient of kinetic friction)
500
You have a 5 gallon bucket and a 3 gallon bucket with as much water as you need, but no other measuring devices. Fill the 5 gallon bucket with exactly 4 gallons of water.
Fill the 5 gallon bucket all the way up. Pour it into the 3 gallon bucket until it is full. Empty the 3 gallon bucket. Pour the remaining 2 gallons into the 3 gallon bucket. Fill the 5 gallon bucket all the way up. Finish filling the 3 gallon bucket.
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