Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Q1/Q2
E/Q1
E/(Q1-Q2)
E/(Q1-Q2)
Correct answer is B
\(efficiency = \frac{workout}{workinput}\)
= \(\frac{E}{Q_1}\)
1.25m
0.50m
0.25m
0.05m
Correct answer is B
P.E\(_{mgh}\) = \(\frac{1}{2}\) * k * x\(^2\)
mgh = \(\frac{1}{2}\) * k * x\(^2\)
50 * 10 * 10 = \(\frac{1}{2}\) * 4 * 10\(^4\) * x\(^2\)
→ x\(^2\) = \(\frac{5000 * 2}{4 * 10^4}\)
→ x = √[0.25]
: x = 0.50m
(m1-m2)g
m1g
m2g
(m1+m2)g
Correct answer is B
No explanation has been provided for this answer.
17.0m
18.0m
22.5m
30.0m
Correct answer is B
distance = area under the graph.
= \(\frac{1}{2}\times 1 \times 4 ) + \frac{1}{2} \times (4+6)\times 1) + (6 \times 1.5) + (\frac{1}{2}\times(2 + 6)\times 0.5)\)
slope of the linear portion of the graph
length of the linear portion of the graph
area under the linear portion of the graph
area under the entire graph
Correct answer is A
No explanation has been provided for this answer.