Revision Questions Flashcards
1
Q
What is a force
A
A force is a push or a pull on an object that is caused by it reacting with something.
2
Q
What is a contact force
A
When two objects have to be touching for a force to act
3
Q
What is a non contact force
A
When objects do not need to be touching for the force to act
4
Q
What do vectors have
A
Both direction and
magnitude Oh YEAH!
5
Q
What do scalars have?
A
Magnitude
6
Q
What are some scalar quantities
A
Distance Speed Mass Temperature Time
7
Q
Vector quantities
A
Momentum Velocity Force Displacement Acceleration
8
Q
What are the two types of forces
A
Contact
+
Non contact
9
Q
What is power measured in
A
Watts (W)
10
Q
What is energy measured in?
A
Joules (j)
11
Q
What is voltage measured in
A
Volts (v)
12
Q
What is current measured in
A
Amps (A)
13
Q
What is charge measured in
A
Coulombs (c)
14
Q
What is resistance measured in
A
Ohms
15
Q
Energy transferred =
A
Power x time
