VOCABULARY
A push or pull.
Force
Pushing a child on a swing requires less force than pushing an adult on a swing highlights which law of motion?
Second Law of Motion
How many simple machines does your book cover?
6
What is the formula for force?
F = M x A
A wagon at the top of a hill possesses what kind of energy?
Potenital
Likely to maintain a state of rest unless acted on by an external force.
Inertia
Who is credited with creating the laws of motion?
Isaac Newton
Any bar that turns on a point.
Lever
What is the unit of measurement for force?
Newtons
The change of an object's position.
Motion
Energy due to motion.
Kinetic Energy
What does Newton's first law state?
An object in motion stays in motion, an object at rest stays at rest.
Two inclined planes placed back to back.
Wedge
What is the typical unit of measurement used for mass?
Kg
A baseball has more momentum than a tennis ball thrown at the same speed because it has more ____.
Mass
By measuring an object's position at different times, you can determine the ___ that object travelled.
Distance
All forces come in pairs highlights what law of motion?
Third
The resistance is located between the effort and the fulcrum in this class lever.
Second-Class
What is the unit of measurement we use for work?
Joules
It takes me 5N of force to pull 3 loads over carpet; it takes me 3N of force to pull 3 loads over tile. Which surface has more friction?
Carpet
A force acting on something as it moves a certain distance.
Work
The law of inertia is Newton's ___ law.
Newton's first law
Combines two or more simple machines.
Compound Machine
What is the formula for work?
W = F x D
The mass and velocity of an object determines that object's ____.
Momentum