Көкжиекке бұрыш жасай лақтырылғын дененің қозғалысы. Тригонометриялық теңдеулер. Физика, 9 сынып, қосымша материал.

Зертханалық жұмыс

Горизонталь лақтырылған дене қозғалысы

Set-up the experiment as shown in the diagram below.

carbon paper

d_x

(a) Measure the maximum height, H from the top of the table.

maximum height, H = ..................................................m [1]

(b) Place the marble at maximum height and release.

Measure the time, t when the marble reaches the floor.

Start the timer when the marble reaches the bottom of the ramp.

Stop the timer when the marble reaches the ground.

Adjust the carbon paper so that the marble hits it upon landing. Make sure it makes a dark dot on the floor.

time of flight, t = ..................................................s [1]

(c) Measure the distance, d_x from the base of the table to the point of impact of the marble on the floor.

distance, d_x = ..................................................m [1]

(d) (i) Repeat steps (b) and (c) changing the height of the marble on the ramp such that

H_max> height > 0 m

(ii) Record in the table the time t and the distance, d_x of the marble every change in height, H until you have

a total of six readings. Include the value for initial velocity, v_o, using the formula

v_o = d_x / t

[2]

(iii) Complete the column headings in the table. [1]

(iv) Plot the graph of distance, d_x (y-axis) against , v_o (x-axis). [4]

(v) Determine the gradient G of the graph. Show clearly on the graph how you obtained the necessary

information.

G = .................................................. [3]