IGCSE Physics Paper-1: Specimen Questions with Answers 18 - 21 of 149
Question 18
Question MCQ▾
A tunnel has a length of 50 km. A jeep takes 300 sec to travel between the two ends of the tunnel. What is average speed of the jeep?
Choices
Choice (4) | |
---|---|
a. | 2.5 km/h |
b. | 16.6 km/h |
c. | 10 km/h |
d. | 150 km/h |
Answer
c.Explanation
Here to find the average speed we can use the formula for this is given as,
Here we have time is 300 sec. Then we can write 5 min
Question 19
Question MCQ▾
Man walk and shows start and end of the walk. How long did the walk take?
Choices
Choice (4) | |
---|---|
a. | 45.7 s |
b. | 47.0 s |
c. | 46.0 s |
d. | 46.5 s |
Answer
c.Explanation
From above figure, we can note down the start time is 15.0 s and end time is 34.0 s. Therefore time for man walk is given as,
Question 20
Answer
c.Explanation
In all others choices, the flask is keeping at some height. Thus they are not so stable.
Question 21
Question MCQ▾
Find average speed of molecules in 2 boxes if they are filled with air and one is on heater and the other is on bench.
Choices
Choice (4) | |
---|---|
a. | Box X – Fast, Box Y – Slow |
b. | Box X – Fast, Box Y – Zero |
c. | Box X – Slow, Box Y – Fast |
d. | Box X – Zero, Box Y – Fast |
Answer
a.Explanation
Here box X is on heater and the box Y is on bench.
Then molecule in box x is moving faster than box Y because of heat. And so molecule in box Y is moving slowly.