Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

higher physics > our dynamic universe pt.1 > Flashcards

our dynamic universe pt.1 Flashcards

1
Q

acceleration

A

the change in velocity per unit time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

acceleration units

A

ms^-2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

newtons 1st law

A

an object will remain at rest, or continue with a constant velocity in a straight line, unless acted upon by an unbalanced force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

newtons 2nd law

A

F=ma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

resolving vectors mnemonic

A

CHAVS (cos horizontal and vertical sin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Vv

A

vsinx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Vh

A

vcosx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

law of the conservation of energy

A

energy cannot be created or destroyed, just changed from one form to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

tension when the object is moving at a constant speed (acceleration is 0)

A

zero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

constant speed in terms of forces

A

balanced forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

force on a slope equation

A

F=mgsinx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

momentum units

A

kgms^-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

law of the conservation of momentum

A

the total momentum before is equal to the total momentum after, in the absence of external forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

total energy in a collision

A

total energy is always conserved

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

kinetic energy in a collision

A

kinetic energy is only conserved in an elastic collision, not in an inelastic collision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

impulse

A

the change in momentum

17
Q

impulse units

A

kgms^-1 or Ns

18
Q

impulse, vector or scalar

A

vector

19
Q

energy, vector or scalar

A

scalar

20
Q

another way to calculate impulse

A

the area under a force-time graph

21
Q

converting ms to s

A

divide it by 1000

22
Q

explain why the tension in each rope increases when an angle is added

A

tension now has a horizontal component, vertical component of tension is unchanged

23
Q

improving reliability of an experiment

A

repeat measurements, use additional (gratings)

24
Q

a cable breaks when a drone hovers at a constant height, describe the vertical motion

A

accelerates upwards as upwards force is greater than weight

25
Q

explain in terms of forces why a terminal velocity may be reached

A

frictional force increases and this and the weight become balanced

higher physics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions