P3 - Forces Flashcards
1
Q
Which force acts downwards?
A
Gravity (weight)
2
Q
What is the reaction force?
A
The force from a surface that acts straight upwards.
3
Q
What would speed something up? (as in forces)
A
Thrust, push or pull.
4
Q
What would slow something down?
A
Drag, air resistance or friction.
5
Q
what does an aeroplane wing do?
A
Lift.
6
Q
Where does tension take place?
A
In a rope or a cable.
7
Q
What is the terminal speed?
A
When the drag = the driving force.
8
Q
What is newton’s second law?
A
If there is an unbalanced force, the object will accelerate in the direction of the force.
9
Q
What is the resultant force?
A
The overall unbalanced force.
