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A level maths Paper 3 Flashcards | StudBud
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A level maths Paper 3
A level maths Paper 3
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1
A particle moves with constant acceleration. Which graph shows displacement vs time?
A sine curve
A curve increasing with time
A parabola opening down
A straight line
2
What is the probability of getting exactly 2 heads in 4 fair coin tosses?
0.125
0.375
0.5
0.25
3
How do you find acceleration from a velocity-time graph?
Final speed
Gradient
Area under the curve
Y-intercept
4
A projectile reaches maximum height when vertical velocity is...
Negative
Maximum
Minimum
Zero
5
What is the median of a cumulative frequency curve?
Range
Mean
The value at 50% cumulative frequency
Mode
6
A force of 10N acts on a 2kg mass. What is its acceleration?
5 m/s²
10 m/s²
20 m/s²
2 m/s²
7
What is the resultant force if two 5N forces act at right angles?
7.07 N
10 N
5 N
2.5 N
8
What is the mean of the data: 4, 6, 8, 10, 12?
8
6
7
10
9
What does a histogram represent in statistics?
Exact data values
Probability density
Grouped frequency data
Box plot summary
10
Which distribution is appropriate for rare events?
Uniform distribution
Normal distribution
Binomial distribution
Poisson distribution
11
In a normal distribution, what percentage lies within 1 SD of the mean?
95%
50%
68%
75%
12
What is the standard deviation a measure of?
Spread of data
Average
Median
Mode
13
How does mass affect acceleration if force is constant?
No effect
Inversely
Exponentially
Directly
14
If P(X=3)=0.2 in a discrete distribution, what is the expectation of X?
1
Cannot be determined
0.2
3
15
What is the null hypothesis in a significance test?
Alternative is true
There is an effect
Mean is not equal
No effect/difference
16
What does 'correlation' measure in statistics?
Causation
Variation
Strength of linear relationship
Average
17
Which distribution is used for hypothesis testing with known variance?
Binomial distribution
Uniform distribution
Poisson distribution
Normal distribution
18
What does a low p-value indicate in a hypothesis test?
Strong evidence against null
Null is likely true
Weak evidence
P is large
19
A car decelerates from 20 m/s to rest in 5s. Find its acceleration.
4 m/s²
-4 m/s²
2 m/s²
0 m/s²
20
How is variance calculated from standard deviation?
Divide by mean
Square the standard deviation
Take square root
Double it
21
In SUVAT, what does 'u' represent?
Time
Displacement
Final velocity
Initial velocity
22
If a box is pulled with a force at an angle, what reduces the effective force?
The cosine of the angle
The sine of the angle
Mass of the object
The tangent of angle
23
Which test is used for comparing means of two independent samples?
Binomial test
Chi-squared test
Z-test
Two-sample t-test
24
What does the area under a velocity-time graph represent?
Area under displacement graph
Displacement
Speed
Distance only
