Forces Mind Map
- Created by: holly wade
- Created on: 02-06-20 13:12
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- Vectors and Scalars
- Forces
- Contact and Non-Contact forces and resultant forces
- A Non-Contact force is a force which acts performs on a object without physically coming in contact with it
- Examples
- Magnetic
- Electric
- Gravitational
- Examples
- A Contact force is a force that requires contact to occur
- Examples
- Applied force
- Spring force
- Drag force
- Frictional Force
- Normal Force
- Examples
- A resultant force can be found by adding up the individual forces
- A Non-Contact force is a force which acts performs on a object without physically coming in contact with it
- Work Done
- When a force causes a body to move, work is being done by the force
- Work is the measure of energy transfer when a force moves an object through a distance
- When work is done, energy has been transferred from one energy store to another
- energy transferred = work done
- Parallelogram and resolution of forces
- To find the resultant of two forces, you can use the parallelogram of force vectors as the sides, then the diagonal will be equal to the resultant force
- The parallelogram of forces is a method for solving the results of applying two forces to an object
- 1) Consider the horizontal and vertical directions separately
- 2) State the size and direction of the resultant force
- Gravity and Centre of Mass
- Gravitational Force is the force of attraction between masses
- Gravity affects all masses, but you only notice it when one of the masses is really big
- TWO IMPORTANT EFFECTS
- 1) On the surface of a planet, it makes all things fall towards the ground
- 2) It gives everything a weight
- Forces and Elasticity
- Forces are responsible for changing the motion of objects.
- Elasticity is the ability of an object or material to resume its normal shape after being stretched or compressed
- f = e x k
- j = 0.5 x k2
- Contact and Non-Contact forces and resultant forces
- A vector is a line with a direction and value whereas a scalar only has a magnitude.
- Example of Vectors
- Displacement
- Velocity
- Acceleration
- Force
- Weight
- Friction
- Momentum
- Example of Scalars
- Mass
- Length
- Distance
- Speed
- Power
- Energy
- Work
- Forces
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