Forces Flashcards
1
Q
Force calculation?
A
Force = Mass* Acceleration
2
Q
Force unit?
A
Newtons
3
Q
Friction
A
The resistive force when two objects rub against each other
4
Q
Drag?
A
Air resistance is pushing against the objects
5
Q
Thrust?
A
Makes the vehicle more. Helps the vehicle
6
Q
Weight?
A
Pulls the object/person/vehicle down
7
Q
Lift or up thrust?
A
Pulling the object up
8
Q
Opposite forces of each other on the object?
A
Upthrust and weight
Drag and thrust
9
Q
Velocity quantity?
A
Vector quantity
10
Q
Speed quantity?
A
Scalar quantity
11
Q
Acceleration: Vector or scalar?
A
Vector
12
Q
Vector
A
Has a direction and Magnitude
13
Q
Scalar
A
Has a magnitude
14
Q
To work out the resultant of two forces
A
- If the forces are acting in the same direction then add them.
- If they are acting in different ones then subtract one front the other.
15
Q
Who’s first law?
A
Newton’s
