High school physics experiment report

Class name student number date experimental subject research on the motion of flat parabolic objects Objective 1. Describe the motion trajectory of a flat parabolic object. 2. Find the initial velocity of a flat parabolic object.

Experimental principle The flat throw motion can be regarded as the combined motion of the uniform linear motion in the horizontal direction and the free fall motion in the vertical direction. Just measure y V0 V0 at a point on the motion trajectory
A
B
C
D

experiment analysis
1. Experimental attention points:
a. Fix the white paper to the wooden board.
b. When fixing the chute, make sure that the chute is not at the end.
c. The ball slides down the slot each time.
d. Record the position of the notch accurately on the white paper, which is used as the position.
2. Experimental error:
When calculating the initial velocity of the ball, you should select a point on the trajectory that is a little further away from the point.
After the wood board and the chute are fixed, the position is not changed during the experiment.

experiment

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Exercise 1. In the experiment to study the motion of a flat object, it has been determined that the height h of the drop and the corresponding range x are as follows, and the initial velocity of the object is flat.
h
5.00
11.25
20.00
24.20

x

. Why is the tangent at the end of the chute in the experiment must be level?
answer:
. Please design a method to determine the speed of toy pistol bullets based on the experimental idea of ​​flat throwing motion.
equipment:
step:
Pistol bullet speed V0=.

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