Motion
This English scientist established the 3 laws of motion.
Who was Sir Isaac Newton?
A push or a pull on an object.
What is Force?
Newton has ___ Laws of motion
3
Net Force is...
The sum of all forces acting on an object.
What is the force of a 70kg Object moving at 4m/s
280 N
You must have this to have motion.
What is Force?
Every Force has ________ and _________
What are Magnitude and Direction?
Newtons 1st Law
What is - An object at rest will stay at rest, or an object in motion will stay in motion unless acted upon by an unbalanced force.
The object stays still or continues moving at the same speed and in the same direction.
What is a balanced force?
Velocity
What is the rate at which an object changes position in a specific direction?
A force that resists motion between two objects.
What is Friction?
A force that is exerted only when objects are touching.
What is a Contact Force?
Newtons 2nd Law
Causes a change in speed or direction.
What is an unbalanced force?
Why are speed and velocity different?
Speed is relative to the object or task, velocity is relative to the direction.
The tendency to remain at rest if at rest
What is Inertia?
A non-contact force than can cause a discharge of electricity from a negatively charged object onto a positively charged one.
What is static electricity?
Newtons 3rd Law
What is - Every action has an equal and opposite reaction.
I add forces together if they are going ________ and I subtract forces when they are ________
Together/Same Direction - AND - Opposite
The Mass of an object impacting a wall with a force of 500 N at 100 m/s.
What is 5kg?
The more _____ an object has, the greater its _______ will be.
What is Mass and Inertia
Magnets.... How do they work?
Electrons in the magnet are all moving in the same direction and pull together when they are close to another magnet with electrons moving in the same direction.
The rate at which an object changes speed or direction.
What is Acceleration?
Four Forces Act on an object, What is the Net?
One Pulls 30 N Left
One Pulls 70 N Down
One Pulls 30 N Right
One Pulls 20 N Up
50 N Down
A 5kg block has a force pulling 100 N right and 125 N left... what is the acceleration?
5 m/s to the left.