Friday, July 6, 2012

Free Download CBSC Maths for Class 7(vii) Chapter13 Test-Motion(Level-Medium)


Chapter 13-Test-01

Total Marks:20                                  Time:45 Min

Note: Q1-Q5 of one marks each and Q6-Q12 of 2 marks each. One marks for presenting the solutions.
Q.1: What is the basic unit of time ?
(A)Second
(B)Minute
(C)Hour
(D)None
Q.2: How many seconds in a year ?
(A)365*24*60*60
(B)24*60*60
(C)24*60*60*353
(D)24*60*60*300

Q.3: Which of the following is not the straight line motion ?
(A)Motion of a horse pulling a cart on a straight road.
(B)Motion of car on a horizontal road
(C)Motion of your hands while running.
(D)Motion of wooden block on a horizontal path.

Q.4: The distance between the home and school is 20km. A car takes 1000 seconds. Calculate the speed of car ?
(A)200000 m/s
(B)20 m/s
(C)5 m/s
(D)None

Q.5: A boy daily runs 10 km in 5 hours. Calculate the distance covered in 15 days ?
(A)75 km
(B)150 km
(C)100 km
(D)None

Q.6: The distance traveled by a car and the time taken by it to cover the distance is given in below table: find out the speed(km/h) of the car.
S.No.
Time(hours)
Distance(km)
1
0
0
2
5h
10 km
3
10 h
20km
4
15 h
30km
5
20 h
40km
6
25h
50 km
Q.7: Draw and explain in one line speed- time(V-t) graph for following scenarios:
  1. A car is moving with a constant speed.
  2. A car parked on high way.

Q.8: Tanya takes 30 minutes from her house to reach her school by car. If the car has a speed of 2 m/s, calculate the distance between her house and the school.


Q.9: The distance time graph for a car is given below. Describe the behavior of graph for AB and BC.












Q.10:The odometer of a car reads 3.5 km when the clock shows the time 08:40:10 AM. What is the distance(m) moved by the car, if at 08:40:20 AM, the odometer reading has changed to 3.6 km? Calculate the speed of the car in m/s during this time.

Q.11:Write down the example of circular motion and oscillatory motion and their definition.


Q.12:A car moves with a speed of 80 km/h for 30 minutes and then with a speed of 120 km/h for the next 30 minutes. Calculate the total distance(km) covered by the car in 60 minutes.






















Answer:
  1. A
  2. A
  3. C
  4. B
  5. B
  6. 2 km/h





  1. 3600 m
  2. AB-- Straight line motion and BC-- rest
  3. 100m, 10m/s
  4. Circular Motion : pedal of bicycle in motion, Oscillatory Motion: motion of pendulum.
  5. 100 km


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