CDS PHYSICS QUIZ 1

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Question 1:

The motion of the wheels of bicycle while moving on the road is an example of which type of motion?

Question 2:

A rocket with a lift-off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 ms-2. Calculate the initial thrust (force) of the blast.  

Question 3:

Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km/h in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m/s2. If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?

Question 4:

An object is covering equal distance in equal intervals of time it is said to be in which type of motion?

Question 5:

A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 ms-1 to 3.5 ms-1 in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude of the force?

Question 6:

An athlete completes one round of a circular track of diameter 100 m in 20 s. What will be the displacements of athelete after 1 minute and 10 s , respectively?

Question 7:

Which of the following forces is responsible for separation of cream from milk in a cream separator? 

Question 8:

Which of the following is the motion in which an object moves such that its distance from a fixed point remains the same?

Question 9:

A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball?

Question 10:

A stone tied to the end of 80 cm long string is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude of acceleration of the stone?