Physics
A free body diagram . . .
A simple representation of the forces acting on an object
What is Dynamics?
Dynamics is a sub topic in Physics that analyzes and examines the impact of forces on objects. Within Dynamics, you will learn about mass, force, energy, and momentum.
Normal Force: The force of any ____ on an object.
Flat surface
Another name for Newton's first law of motion?
Law of Inertia
An example of a contact force is:
Friction, tension or normal force
An example of a non contact force is:
Gravity, electric forces, magnetic forces.
What is Newton's 2nd law of motion?
F = m*a
What is Newton's 3d law of motion?
For every action, there will be an equal and opposite reaction.
What is Newton's first law of motion?
A object in motion will remain in motion unless acted upon by an exterior force.
equal.
What must you always remember about your universe?
Doesn't matter which direction is x or y, just that you have to stick with it.
If an object is at rest, that means that . . .
A block sits on a ramp. Joe says that the reason why is because the force of the Normal is equal to the force of gravity. Why is Joe wrong?
Because the force of the Normal is equal and opposite to the force of gravity in the y direction, while the force of friction is equal and opposite to the force of gravity in the x direction.
A block slides down a ramp. This means that the force of _____ is greater than the force of ______
gravity in the x direction, friction
A block (1st) slides up a ramp, while being connected to another block (2nd) via a pulley. This means that the force of _____ acting on the _____ block is accelerating the block downward.
gravity, 2nd