Forces
What is a force?
A push or a pull
Finish this statement:
An object at rest __________
Stays at rest.
What happens to a moving object if no force stops it?
It will continue to move.
What is speed? How do you calculate it?
Speed measures how fast something is moving.
How do you solve for net force on a diagram?
Add arrows in the same direction, subtract arrows going opposite ways
What does friction do?
What is slows things down, prevents things from moving?
Finish this statement:
An object in motion_______
Stays in motion.
Newton's 1st law is known as:
The law of Inertia.
How can I turn this value into velocity? 30mph
Add a direction: ex: 30 mph south
If the forces are the same on both sides of a moving object is it balanced or unbalanced?
Balanced
What is gravity?
A force that brings objects down.
What is one of Isaac Newton's contributions?
Calculus
Telescope
The Force of Gravity
The laws of Motion
What does "at rest" mean?
Not moving.
S,V,A?
The car turned the corner.
Acceleration
What is the unit for "force"?
Newtons
Which force SLOWS down a sky diver?
Air resistance.
What did Isaac Newton's mother want him to be?
A farmer.
How does using seatbelts in a moving car connect to Newton's 1st law of motion?
Seatbelts help protect you because your body wants to keep doing this during a sudden stop.
Velocity the ________ and _______ of a moving object.
Velocity the speed and direction of a moving object.
<---- ----->
50N. 60N
10N
Give one example of friction.
Vary.
How did Isaac Newton develop the idea of "gravity"?
An apple fell on his head and he started to think about what caused it.
Give one example of Newton's first law
Vary.
How do you calculate speed?
Solve this problem:
<--- <----
25N. 30N
Which direction will the object move?
55N Left