Newton's first law
What does it take to move an object?
An unbalanced net force.
What is the SI unit for forces.
Newtons
What does Newton's third law state?
For every action there is an equal and opposite reaction.
True or false. objects must exceed a certain mass limit to have gravity.
False. every particle in the universe has it's own gravity.
What is the nickname given to Newton's first law?
The law of inertia.
What is the equation for force?
Force=Mass x Acceleration
What is the equation for momentum?
Momentum= Mass x Velocity
p=mv
What is the acceleration of all objects falling to earth?
9.8 meters per second squared
What does the word inertia describe?
How hard it is to change the motion of an object.
What is the direction of the net force acting on an object with 3 newtons pushing west and 3.1 pushing east
to the east
When two objects collide the total amount of momentum is ____________
Conserved
What is weight based on?
Mass times the force of gravity on an object.
If an object is described as having a lot of inertia will it have very little mass? Explain.
It will not. To have high inertia an object needs a lot of mass.
What is the force of an object with a mass of 19.3kg and an acceleration of 51.0m/s2?
984.3 newtons
What is the momentum of a 12Kg object going 42m/s
504Kg m/s
What is the name of the motion when an object is thrown?
Projectile motion.
What is an unbalanced net force?
A net force with more force in a certain direction than all other directions, causing acceleration.
10.3m/s2
What is the momentum of an 93.7Kg object moving at 406.2 m/s
38060.9Kg m/s
What is the weight of an object with a mass of 15 kilograms on earth?
147Kg