Question

1. A pendulum takes 0.5 s to make one oscillation about its mean position. How long will it take to make 5 oscillations?
1 point
A)5 s
B)7.5 s
C)2.5s
D)10s

2. Sunitha can type 1800 words in half an hour. What is her typing speed in words per minute?
1 point
A)60
B)600
C)50
D)3000

3. A truck travels 840 km using 60 litres of diesel. What is the fuel consumption of the truck?
1 point
A)14 km per litre
B)14 litre per km
C)140 km per litre
D)140 litre per kr

4. A water pipe has water flowing through it. Which of the following changes would increase the speed of water flow through the pipe?
1 point
A)Increase the water pressure
B)Increase the length of pipe
C)Make the pipe coiled
D)Make the pipe narrower

5. With what speed should a car travel so that it can cover a distance of 5 km in 5 min?
1 point
A)1 km h−1
B)5 km h−1
C)12kmh−1
D)60 km h−1

6. A car travels with a speed of 50kmh−1in the 1st hour and 100kmh−1 in the 2nd hour. What is the total distance covered by the car in the two hours?
1 point
A)50km
B)100km
C)150 km
D)200 km

7. Which of the following is the most suitable device for measuring the time the runners take in a 100 m marathon?
1 point
A)Hourglass
B)Stopwatch
C)Pendulum
D)Sun dial

8. A man runs 10 km in 30 min. What is his speed per hour?
1 point
A)5kmh−1
B)10kmh−1
C)15kmh−1
D)20 km h−1

9. In a marathon, Varun runs 800 metres in 2 minutes 40 seconds. What is his speed in metres per second?
1 point
A)4ms−1
B)5ms−1
C)200ms−1
D)1600ms−1

10. Which of the following does NOT show oscillatory motion?
1 point
A)Swing
B)Fan
C)See-saw
D)Pendulum​

Answer 1

Answer:

C) 2.5s

C) 50

A) 14 km per litre

D) Make the pipe narrower

D) 60 km h−1

D) 200 km

B) Stopwatch

B) 10 km h−1

A) 4 m/s

D) Pendulum