Measurements used in Linear motion Flashcards
What is the definition of linear motion?
Motion in a curved or straight line, with all body parts moving at the same time, distance and speed
What is the definition of mass?
The quantity of matter a body posses
What is the definition of weight?
The force on a given mass by gravity
What is the definition of distance?
The length of path a body follows to get from one position to another
What is the definition of displacement?
The length of a straight line joining the starting and finishing point
What is the definition of speed?
The rate of change of position
What is the definition of velocity?
The rate of change of displacement
What is the definition of acceleration/deceleration?
The rate of change of velocity
What is scalar and name all the quantities…
Only takes size into consideration:
- Speed
- Mass
- distance
What is vector and name all the quantities…
Takes size and direction into consideration:
- Velocity
- Weight
- Displacement
- Acceleration/deceleration
Give the 6 details on momentum..
1) p=mv (momentum = mass x velocity)
2) Momentum is constant, mass is also constant
3) so velocity is the only thing that can change momentum
4) This is either done through acceleration or decceleration
5) Momentum is constant until an external force is acted upon it which reduces momentum such as air resistance or gravity
6) This will cause the object to eventually stop
Give details on inertia…
NOT A FORCE
1) The resistance an object has to change it’s state of motion
2) As mass increases so does the object’s inertia
3) In order to change an object’s state, a larger force than it’s inertia is needed
4) The greater the mass, the greater the resistance to change, therefore the greater the force needed to over come it’s inertia and change its state of motion
