Forces and speed Flashcards
1
Q
what is a force
A
a force is a push or a pull
2
Q
what do newton meters measure
A
the amount of force on an object
3
Q
what is mass
A
mass is how much of something there is
4
Q
what is weight
A
weight is a force it measures the effect of gravity on an object.
5
Q
what does friction oppose
A
motion
6
Q
if two forces are balanced what happens
A
it travels at a constant speed
7
Q
on a distance time graph what is on the x axis
A
time
8
Q
what does a curved line mean on a distance time graph
A
changing speed
9
Q
what force acts on objects to make them float
A
upthrust
10
Q
what is the formula for density
A
m/v
11
Q
what is the formula for volume
A
m/d
12
Q
what is the formula for mass
A
DxV
13
Q
how do you calculate speed
A
distance /time
14
Q
how do you calculate distance
A
speed x time
15
Q
how do you calculate time
A
distance/speed
