Forces Flashcards
1
Q
What’s a scalar quantity ?
A
Had magnitude (size) only
2
Q
What’s a vector quantity?
A
Magnitude and direction, shows speed and direction of travel
3
Q
Is force a vector or scalar quantity?
A
VECTOR QUANTITY
4
Q
Examples of contact forces ?
A
- friction
- tension
- air resistance/drag
- normal contact force
- upthrust
5
Q
Examples of non contact forces ?
A
- gravitational force
- electrostatic force
- magnetic force
6
Q
What is gravity ?
A
Force of attraction between all masses
7
Q
What is mass ?
A
-amount of matter it contains and is constant
8
Q
What is weight ?
A
Force acting upon object due to gravity
9
Q
What does the weight of an object depend on ?
A
-gravitational field strength where object is and is directly proportional to its mass
10
Q
Equation for weight
A
Mass X gravitational field strength
Mass- measured in kg
Gfs-measured in N/kg
