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F&M/S.M.
F&M/S.M
| Question | Answer |
|---|---|
| What is defined as the push or pull that acts on an object? | FORCE |
| What is force measured in units of? | NEWTONS |
| What force is known as either pushing or pulling an object? | CONTACT FORCE |
| What is the force that results when two materials rub against each other? | FRICTION |
| What is a type of force that acts as a distance? | NON-CONTACT FORCE |
| What are the three non-contact examples? | Magnetic forces, Electric forces, Gravity |
| What is non-contact force, it pulls objects towards itself, like the Earth? | GRAVITY FORCES |
| What are forces between objects that are electrically charged? | ELECTRIC FORCES |
| What are forces that pull together or push away due to their north or south magnetic poles? | MAGNETIC FORCES |
| What are the two magnetic forces that pull together in a magnet and that repel from each other in a magnet? | N to S or S to N = pull together & N to N and S to S = repel each other |
| What are the three motions that change in an object? | Speed up, Slow down, Or change direction |
| What is known as the rate of speed in an object? | Acceleration |
| What is known as motion without acceleration? | Uniform motion |
| What does Uniform in motion mean? | It means the speed in an object stays the same |
| What is Newton’s 1st Law? | An object at rest will stay at rest and also an object in motion will keep the same speed and direction. |
| What is inertia? | It’s the tendency of an object to resist any change in motion |
| What are the differences between inertia in large and small objects? | Large, heavy objects have more inertia than small, lighter objects |
| What is Newton’s 2nd Law? | Describes how acceleration, mass, and force are related or Force=Mass X Acceleration |
| What is Newton’s 3rd Law? | One object exerts force on a second object and the second object on the first |
| In plain basic understanding of the 3rd Law, what does it mean? | The forces are equal in strength, but opposite in direction |
| What is something used to change the amount or direction of force needed to do work? | SIMPLE MACHINES |
| What is a simple machine made up of a rope or cable that runs around a wheel? | PULLEY |
| What are the two parts to a LEVER? | The bar and the fulcrum |
| How does a LEVER work? | The force on one end of the lever will move a load on the other end more easily by put more force to the short end of the fulcrum |
| What is an INCLINED PLANE? | It is a simple machine that is a flat surface tilted to an angle |
| How does an INCLINED PLANE work? | It helps to move heavy objects up or down with less effort than lifting them straight up |
| What is a screw? | It is a simple way of holding together two materials or to bring material forward or backwards in portions |
| What is a WEDGE? | It is a simple machine that has a triangular shape |
| How does a WEDGE work? | It works by changing the direction of the input force |
| Where does an axle go in a wheel and what does it do with the direction of the wheel? | It is in the center or the ends of the wheels, and both turn at the same time |