PHY_10_3_V1_DM_defining acceleration of a body moving on an inclined plane

Laboratory work №1.«Determination of acceleration of a body moving along an inclined plane»

Purpose: to calculate the acceleration with which the ball rolls down an inclined chute. To do this, measure the length of movement of the ball for a certain time Since the uniformly accelerated motion without the initial velocity S=(at^2)/2, you can find the acceleration of the ball. It is equal:

Measuring instruments: measuring tape, metronome.

Materials: chute, ball, tripod with couplings and foot, metal cylinder.

The order of execution of works:

1.         Secure the chute with a tripod in an inclined position at a slight angle to the horizon. At the bottom end of the chute, place the metal cylinder.

2.         Dropping the ball (onovremenno with the beat of the metronome) from the upper end of the trough, podschitat number of umirovljenika before the collision sharikas cylinder. Experience conveniently carried out at 120 beats of the metronome per minute.

3.         By changing the angle of inclination of the chute to the horizon and making small movements of the metal cylinder, ensure that between the moments of start of the ball and its collision with the cylinder was four metronome strikes (three intervals between strikes).

4.         Calculate the time of movement of the ball.

5.         Use the measuring tape to determine the length of the ball movement. Without changing the slope of the chute (the conditions of the experiment should remain unchanged), repeat the experiment five times, while achieving the coincidence of the fourth blow of the metronome with the impact of the ball on the metal cylinder (the cylinder can be moved).

6.          According to the formula  find the average value of the displacement, and then calculate the average value of the acceleration module: .

7.         The results of measurements and calculations are recorded in the table.

8.         Make a conclusion about the work done.