SA I - Full Physics Test - Class 9 MCQ

The rate of change of displacement with time is :-

Which of the following is not vector quantity?

If the time-displacement graph of a particle is parallel to the time-axis, then velocity of the particle is

In the velocity-time graph, AB shows that the body has

In the given velocity-time graph, AB shows that the body has

A car starts from city A and it travels 50 km in a straight line to city B. Immediately it turns around, and returns to city A. It took 2 hours for this round trip. The average speed of the car for this round trip is:

In the given figure, velocity of the body at A is

An external influence which changes or tends to change the state of rest or uniform motion of body or its
dimensions is called

When balanced forces act on a body, the body:

Force remaining constant, if the mass of body increases, its acceleration is likely to

A force F produces an acceleration 'a' in a body. The same force produces and acceleration 4a in another
body. The mass of other body is :

A body will continue in its state of rest or uniform motion in a straight line, unless acted by some external
force. The statement represents :

The magnitude of a physical quantity is 8.5 Ns. The physical quantity is :

When the driver of a fast moving car suddenly applies brakes, the passengers in the car

Which is the incorrect statement?

A spaceship continues moving in space with uniform speed because:

The unequal and opposite forces acting on a body, which change its state of rest or uniform motion are called

A force F acts on a stationary body for the time t. The distance covered by the body 'S' will be proportional to

TRUE OR FALSE :

Force may or may not produce any motion in a body.

TRUE OR FALSE

Action and reaction act on the same body :

TRUE OR FALSE :

Impulse represents the rate of change of momentum of a body.

TRUE OR FALSE :

In any interaction there are always at least two forces in play.

The first law of motion is also known as Gallieo's law of inertia.

Mechanics is the branch of physics which deals with ..........................

The reference point from which the distance of a body is measured is called ..........................

Displacement is the .......................... distance between two points

A quantity which can be completely represented by magnitude and direction is called ..........................

Speed is the ratio of the .......................... travelled to the time taken.