Newtons
What are forces measured in?
Newtons
What is Newton's 2nd Law of Motion?
The net force on an object will cause the object to accelerate according to F=ma
What is friction?
The force that opposes the motion of two object against one another
What is the rule of forces and motion?
Forces cause motion. There must a minimum of one force or more on an object in order for the object to move.
How can an object travel at constant speed with no net force on it?
No net force means the sum of all the forces on the object is zero, there are still forces on the object.
Who is the unit Newton named after?
Sir Issac Newton
What do the letters ini Newton's 2nd Law stand for?
F= Net force
M= mass
A= acceleration
What is gravity?
THe force of attraction between any two masses
How do forces affect an object's motion if they are balanced?
If all the forces on an object are balanced, the object may only move at constant speed.
What is the greatest force that is man made?
Tsar Bomba
What is the abbreviation of Newtons?
(N)
What are the units of Force, mass and acceleration?
F= N newtons
M= kg kilograms
A= acceleration m/s^2
What is the applied force
This is any force that is applied to an object
How do unbalanced forces or net forces affect the motion of an object?
Unbalanced or net forces cause an object to accelerate, either speed up or slow down.
What is the greatest force that occurs in nature?
The strong nuclear force
How much is one Newton in pounds?
1/4
How much force is required to accelerate a 100 kg block 4 m/s^2?
F= 400 N or about 100 lbs.
What is tension?
This is a force that is applied to an object by a chain, string or rope. It may only pull.
How do forces affect each other?
When two or more forces act in the same direction they add together
Why did the ball float above the air tube in our class demonstration?
The air pushing up on the ball was equal but opposite to the gravity on the ball.
How many Newtons is 100 lbs?
400 N
How much acceleration would a car experience if 24,000 N were applied and it had a mass of 6000 kg?
4 m/2^s
What is magnetic force
A force of push or pull of a magnet on a piece of iron or another magnet
How do forces affect each other when they are in the opposite direction?
When two or more forces are in the opposite direction they subtract from one another
Why did the balloon NOT pop on the board with many nails on it?
The force was distributed to all the nails so there wasn't enough force on a single nail to pop the balloon.