Ch8 Forces in balance Flashcards
1
Q
Vector quantity examples(5)
A
Force Acceleration Momentum GFS Velocity
2
Q
Scalar quantity examples(7)
A
Speed Distance Mass Time Temperature Energy Power
3
Q
Newton’s 3rd law of motion
A
When two objects interact with each other, they exert equal and opposite forces on each other
4
Q
11 Forces
A
Push Pull Thrust Air resistance Friction Thrust Tension Reaction Lift Drag Gravitational Field Strength Weight
5
Q
Force that acts in a downward direction
A
Weight
Gravitational Field Strength
6
Q
Force that acts under a wing
A
Lift
7
Q
Force that acts in a cable or rope
A
Tension
8
Q
Force that speeds up
A
Push
Pull
Thrust
9
Q
Force that slows down
A
Friction
Air Resistance
Drag
10
Q
Force that acts in a horizontal plane
A
Reaction
11
Q
Newtons 1st law of motion
A
If forces acting on an object is balanced, resultant force is zero
- object stays stationary
- it moves at the same speed and in the same direction
12
Q
scalar quantity
A
only have magnitude
13
Q
vector quantity
A
have magnitude and direction
14
Q
weight
A
mass x gravitational field strength
15
Q
work done
A
= force x distance
=Fs
