Forces
Force is measured in this (units)
What is Newtons?
This law explains why your school books will fly forward in a car if you break suddenly
What is Newton's 1st Law?
Pretend there is a cup on top of a table. It is not moving.
Use Newton's 1st law to describe its motion.
What is "the cup is at rest and will stay at rest unless acted upon by an unbalanced force?"
The force that occurs when two surfaces rub together
What is Friction?
This type of net force will result in a change in motion (you can provide an example)
What is Non-zero Net Force? (ex. 7N to the right)
Describe what would happen to a paper airplane if you launched it into space where no external forces were acting on it. (no gravity or air resistance)
What is "The airplane would travel forever at a constant velocity until it encountered another force?"
There is a box sitting on the floor. It is pulled 100N to the left and 100N to the right.
What is a balanced force and the box will not move.
What can influence acceleration
What is increase speed or decrease speed?
A worker pushes a wheelbarrow at a constant speed. The wheelbarrow has two opposite horizontal forces on it: the worker’s push, and friction. If neither force changes and the push force is larger than the friction force, how would you describe the motion of the wheelbarrow?
What is constant speed?
What is the sum of all forces acting on an object called?
What is net force?