# Hello ! Welcome to your NTSE Physics - SAT

Instructions:

Time: 20:00 min                                                                                                          Full Marks: 60

1. There is negative marking of -1.00 for all incorrect answers chosen.
2. There is no deduction for NOT attempted question.
3. All questions carry equal marks and all 15 questions are of 4 marks each.
4. All Questions are compulsory.

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1. A body goes from A to B with a velocity of 20 m/s and comes back from B to A with a velocity of 30 m/s. The average velocity of the body during the whole journey is
2. A body covers half the distance with a speed of 20 m/s and the other half with a speed of 30 m/s. The average velocity of the body during the whole journey is
3. In the equation of motion, S = ut + (½)at2, S stands for
4. Choose the wrong statement.
5. In the equation of motion, x = at + bt2, the units of a and b are respectively
6. A body is thrown up with an initial velocity u covers a maximum height of h, then h is equal to
7. A body is thrown vertically upwards and rises to a height of 10 m. The velocity with which the body was thrown upwards is (g = 9.8 m/s)
8. Velocity-time graph AB fig shows that the body has

9. A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1 in the remaining 10 s, then which of the following is true?
10. A train passes over a 400 m long bridge if the speed of the train is 30 m/s and the train takes 20 s to cross the bridge, find the length of the train.
11. SI unit for the average velocity is
12. A train 50 m long passes over a bridge at a velocity of 30 km/h. If it takes 36 sec to cross the bridge, the length of the bridge will be
13. The SI unit for angular velocity is
14. The figure below shows the displacement-time graphs (a) and (b) for a body moving in a straight path drawn on the same scales. Then

15. In figure BC represents a body moving

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