Scalars And Vetors Flashcards
What is a scalar
A quantity that is size only
What is a vector
A quantity that has both size and distance
What are the 4 vectors
Velocity ( speed in a direction)
Displacement (distance in a direction)
Force ( in a direction)
Acceleration ( meters per second per second)
Give examples of scalars
Speed Distance Time Volume Energy
What is a contact force
If 2 objects must touch to interact the force is contace
Name some contact forces
Friction Tension Air resistance Pull Push Thrust
Name some non contact forces
Gravity
Magnetic
Electrostatic
How to you add vectors that are not travelling in the same direction.
Create a parallelogram and then measure the length from corner to corner
How to you add vectors that are not travelling in the same direction at a 90 degree angle
Use pythagorus
What is the centre of mass
It is the point of which its mass and be thought of being concentrated
Where is the center of mass on an object
The point where all the lines of symmetry meet
