Other
AQA A-level Physics Motion Kinematics Mark Scheme
- Institution
- AQA
Mark scheme for the corresponding document: AQA A-level physics Motion Kinematics'.
[Show more]
Seller
Follow
Content preview
theonlinephysicstutor.comMark schemes
B
1 [1]
A
2 [1]
B
3 [1]
C
4 [1]
D
5 [1]
A
6 [1]
B
7 [1]
C
8 [1]
(a) km h–1 → ms–1 (27.8 m s–1) or 100000/(5.8 × 3600)
9
C1
acceleration equation or correctly substituted values
C1
4.79 cao
A1
3
(b) equation of motion or correctly substituted values
(s = ut + at2; s = (v + u)t/2; v2 = u2 + 2as)
C1
80.6 m e.c.f. from (a)
A1
2
[5]
@TOPhysicsTutor facebook.com/TheOnlinePhysicsTuto
Page 31 of 50
, theonlinephysicstutor.com
(a) correct substitution in (v2 = u2 + 2as)
10
or correct rearrangement g = or
= 9.6 (9.61 m s–1)
2
(b) g = W/m or W = mg (= ma) and weight is proportional
to mass/doubling the mass doubles the weight/’masses
cancel’/the factor of two cancels (so g remains the same)
1
(c) ball’s acceleration will decrease/be less than card’s or card’s
acceleration will be unaffected/nearly constant
air resistance affects cards less or card is more streamlined
or card does less work against air resistance
alternative timing/(velocity/speed/acceleration)
uncertain/(inaccurate /imprecise/less reliable)
indication that full width of ball may not pass through gate/difficulty
in determining ‘length’ of ball passing through gate
2
[5]
(a) states area under graph = distance or clear evidence of
11 graph use
B1
½ × 30 × 25 seen
B1
2
(b) accel = grad of graph or uses a = Δv/Δt
M1
30/20 = 1.5 m s–2
A1
2
(c) 300 + 375 = 675 m
B1
1
@TOPhysicsTutor facebook.com/TheOnlinePhysicsTuto
Page 32 of 50
, theonlinephysicstutor.com
(d) 675/680 m (ecf) at 30m/s takes 22.5/22.7 s
C1
but actually took 90 s
C1
so loss of time = 67.5/67.3 s
A1
3
[8]
(a) AB: (uniform) acceleration (1)
12 BC: constant velocity / speed or zero acceleration (1)
CD: negative acceleration or deceleration or decreasing speed / velocity (1)
DE: stationary or zero velocity (1)
EF ; (uniform) acceleration in opposite direction (1)
5
(b) area under the graph (1)
1
(c) distance is a scalar and thus is the total area under the graph
[or the idea that the train travels in the opposite direction] (1)
displacement is a vector and therefore the areas cancel (1)
2
[8]
clear attempt to use area under graph/statement that distance is
13 equivalent to area under graph
C1
38 to 40 squares/1 square is equivalent to 0.05 m
C1
1.9 to 2.0 m
A1
[3]
@TOPhysicsTutor facebook.com/TheOnlinePhysicsTuto
Page 33 of 50
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TheQuizMaster. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now