science term 1 test Flashcards
1
Q
scalar measurements
A
only have a size and no directions
2
Q
vectors
A
both size and a direction
3
Q
what does a scientific drawing need
A
labels and arrows
4
Q
bike going uphill and downhill shows what forces
A
the brake force, normal, driving and weight force
5
Q
distance
A
how far an object has travelled from its starting point
6
Q
displacement
A
how far an object is from its starting point
7
Q
whats the equation for energy efficiency
A
useful energy/total energy x 100
8
Q
v =
A
s/t
9
Q
s=
A
t x v
10
Q
t=
A
s/v
11
Q
acceleration =
A
change in velocity / time taken
12
Q
velocity =
A
displacement / time
13
Q
weight =
A
mass x acceleration
14
Q
whats the one u needa remember
A
9.3
15
Q
arrgrh
A
rewfdc
