The distance between points with no change of direction
1 of 22
What is a Vector Quantity -
Quantities with a magnitude and direction
2 of 22
What is a Scalar Quantity -
Quantities with only a magnitude
3 of 22
Arrows to represent Vector Quantities -
The size of the arrow represents the magnitude of the quantity / The direction of the arrow shows the direction of the quantity
4 of 22
What is a Scale Diagram -
Arrows are drawn to scale of the quantities depicting forces acting in multiple directions
5 of 22
The effect of Forces on objects -
Forces either change the shape of an object or change the objects state of rest or motion
6 of 22
Contact Forces -
When two objects must touch to interact
7 of 22
Non-Contact Forces -
When two objects don't need to touch to interact with each other
8 of 22
Newton's 1st Law of Motion -
An object will remain at rest or in a uniform motion in a straight line unless acted upon by another force
9 of 22
Newton's 3rd Law of Motion
For every action, there is an equal and opposite reaction
10 of 22
If the Resultant force on an object = 0N ...
... The object will remain stationary or moving in a uniform motion
11 of 22
If the Resultant force on an object ≠ 0N ...
The object will begin to accelerate or decelerate depending on which force is larger
12 of 22
Moment =
Force * Perpendicular Distance
13 of 22
How is the Moment increased - (2 Ways)
By increasing the force applied / By increasing the distance from the turning point
14 of 22
Levers -
Levers act as force multipliers as they increase the distance from the turning point / The longer the lever, the less force that needs to be applied
15 of 22
Low Gear -
Small gear turning a larger gear / Low turning speed / High turning force or effect
16 of 22
High Gear -
Large gear turning a small gear / High turning speed / Low turning force or effect
17 of 22
Center of Mass -
The center of mass of an object is the point at which its mass is considered to be concentrated / If an object is suspended, it will rest at its center of mass below the point of suspension
18 of 22
Freely Suspended objects -
Freely suspended objects are free to move / Their center of mass is directly below the point of suspension / It will always return to its point of equilibrium
19 of 22
Center of Mass of a Symmetrical Object -
The point at which all of the shapes lines of symmetry meet
20 of 22
Balanced See Saw's -
W1d1 = W2d2
21 of 22
Principal of moments -
Sum of all clockwise moments = Sum of all anticlockwise moments
22 of 22
Other cards in this set
Card 2
Front
Quantities with a magnitude and direction
Back
What is a Vector Quantity -
Card 3
Front
Quantities with only a magnitude
Back
Card 4
Front
The size of the arrow represents the magnitude of the quantity / The direction of the arrow shows the direction of the quantity
Back
Card 5
Front
Arrows are drawn to scale of the quantities depicting forces acting in multiple directions
Comments
No comments have yet been made