P8 - Forces Flashcards
1
Q
displacement
A
-distance without change of directionq
2
Q
vectors
A
-physical quantities that have size + direction
3
Q
eg of vectors (6)
A
-acceleration
-momentum
-displacement
-force
-weight
-velocity
4
Q
scalar
A
-physical quantities that have size only
5
Q
eg of scalars (5)`
A
-speed
-distance
-time
-mass
-temp
6
Q
magnitude
A
size of quantity
7
Q
vector =
A
magnitude + direction
8
Q
scalar =
A
magnitude
9
Q
arrow in vector
A
-direction
-size = magnitude
10
Q
force
A
push or pull that acts on an object due to its interaction with another object
11
Q
contact forces
A
-must touch to interact
-eg friction
12
Q
non contact forces eg
A
- magnetic force
-electrostatic force
13
Q
Newton’s 3rd law of motion
A
-when 2 objects interact,
-they must exert equal and opposite forces on each other
14
Q
driving force
A
push or pull
15
Q
resultant force
A
-single force that has the same effect as all other forces
