امتحان لايف Physics (1fab) | General Exam.

Free fall acceleration differs from one place to another due to:

When a body is thrown vertically upwards, the rising time is ……… the falling time.

Two bodies of different materials having the same volume fall freely together from the same height. Which statement  describes correctly their arrival to the ground?

When a body is thrown vertically upwards, then …………..

When a body falls freely in the earth’s gravitaitonal field, the coverd distance is ………………

When a body is thrown vertically upwards with initial velocity V_i, it returns back to the throwing point after time ( t ) which is determined from the relation = ……………

a) 2 V_i g

b)2Vi/g

c) V_i g

d)V_i/g

The graph that best  describes an object projected vertically upwards and returned back to the point of projection, having the direction of initial  velocity positive, is ……………

the max horizontal displacement the body reaches when it projected with an angle………

the max height the body reaches when projected with an angle………………..

When an object is projected at initial velocity vi in a direction making an angle 60° to the horizontal to reach a horizontal range R. To make the projectile reach a greater range, it should be projected at the same initial velocity and angle
a. 90°

b. 75°

c. 45°

d. 30°

The horizontal component of initial velocity of a projectile. equal zero when projected by angle

When the resultant force acting on a moving car is zero, the car……….

When the direction of force in the direction of motion the velocity…

If the resultant force acting on a moving body vanished, it means that its……. Vanished.

It is the tendency of the body to keep its state of rest or motion in straight line with uniform velocity.

The continuity of rotation of the electric fan for a period of time although the electric current is turned off is due to……..

If the mass of a body decreases to one third, its inertia ………….

If the acting force on a body equals 9N, the reaction will be …….. N.