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INCLINED PLANE

Hypothesis:

The larger the angle of incline, the higher the velocity just before reaching the end of the runway

Aim of the experiment:

To study the relationship between the velocity of motion and the angle of inclination

Variables:Manipulated : Angle of incline

Responding : Velocity just before reaching the end of the runway

Constant : Length of runway

Apparatus/Materials:

Trolley, protractor, wooden blocks, cellophane tape, ticker-timer, ticker tape, power supply, friction-compensated

runway

Procedure:

1. The apparatus is set up as per the diagram, and the inclined angle of the plane is measured using a protractor.

An initial angle of 5° is used.2. The ticker-timer is started up and at the same time the trolley is released to slide down the plane.

3. The final velocity when the trolley reaches the end of the plane is calculated using the distance of 10 ticks on

the ticker tape.

4. The procedure is repeated by changing the angle of incline to 10°, 15°, 20° and 25°.

Results:

Analysis:

A graph of the velocity of the trolley against the angle of incline is plotted as follows:

Conclusion:

A higher angle of incline will have a higher velocity at the end of the runway. Hypothesis accepted.

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