• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Design Lab, Force of Sponge

Extracts from this document...

Introduction

IB Physics Yr.1 HL

Design Lab

Design Lab

Force exerted by a sponge

Purpose/Introduction

To determine the force applied by the stationary sponge when a cart at different speeds collides. In this experiment, a cart will collide with a sponge and because of Newton’s third Law of motion, the sponge will apply force on the cart as well, which will push it backwards. The cart will be released using the elastic force from a rubber band. This rubber band will be set as a slingshot where the cart will be placed between it. A photogate will be placed almost halfway between the slingshot and the sponge that will record the time for the cart. This will further give us the instantaneous velocity of the cart.

...read more.

Middle

cartvcart)after

Also, from the formula of impulse, it can be determined that:

Impulse = FΔt = mΔv

Hence, F= (mΔv) / t

Because we have already recorded the time that the cart takes to come to rest after collision, we can put it in the above formula, along with the momentum calculated before. This will finally give us the force exerted.

Independent variable: Speed of the cart

Dependant variable: Force applied by the sponge, Distance covered by cart after collision.

Controlled variable:

Type and size of sponge: As more mass or size of sponge affects the force exerted

Mass of cart: More mass means more momentum

Friction of surface: Friction means that there is net force

Shape and size of cart

...read more.

Conclusion

Place a photogate at almost halfway through and mark the point where it is placedMake sure that a meter stick is placed parallel to the apparatus with its tip at the end point of the spongeNow release the slingshot such the cart collides with the sponge and moves a certain distance backwardsAs soon as the cart hits the sponge, start a stopwatch and stop when the cart comes to rest. Record this time. Also, note down the distance of the cart when it moves backwardsRepeat steps 2, 5 and 6, where the slingshot is stretched more each time such that the velocity of the cart increases.Use the data collected to first calculate the velocity of the cart, then the momentum and then the force using the formula derived from impulse.

The apparatus is set up as below:

image00.png

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Suspension Bridges. this extended essay is an investigation to study the variation in tension ...

    This happens because as the elasticity of the string increases, it stretches and therefore, the tension force is also spread about a wider area. Relation of tension to the strain values of strings The strain values have been calculated in the previous section and it is found out that ?nylon < ?band .

  2. Ohm's Law lab

    Error bars cannot be shown as the magnitude of error � (1 - 5)% is insignificant on the graph. From DCP Table 1.3 and Graph 1.1, we have proved the bulb filament to be non-Ohmic. CE Graph 1.2 - Graph showing the plotted readings for the bulb filament immersed in water with the ammeter reading (A)

  1. Investigating the Breaking Distance of a Cart

    Each round the crate was released to motion with the help of rubber bands. By attaching two rubber bands to the end of the track the releaser for the crate was set up. Pulling the crate with varying extensions with the band would result in differing initial velocities.

  2. The purpose of this lab is to examine impact craters. Impact craters occur when ...

    Repeat this procedure with the other sand boxes to record their data as well. Diagram Controlling the Controls: The way that the controls will be managed is by using the same ball, leveling the sand off in the same manner, and releasing the ball from the same heights from the clamps.

  1. Centripetal Force

    pulls the paper clip up to, but not touching, the bottom of the tube. 5. Get a partner to keep an eye on the position of the clip to ensure that the speed of rotation stays quite constant. Practise doing so for a while before trying any measurements.

  2. centripetal force lab (DCP, CE)

    0.250 0.38 0.40 0.44 0.47 0.42 0.42 0.02 0.300 0.36 0.38 0.41 0.39 0.43 0.39 0.01 Mean 0.02 From the graph, the best fit is does not pass through the origin and it is more like a negative curve. This may suggest a positive linear relationship between and the hanging mass M.

  1. HL Physics Revision Notes

    Sources that can be used up and eventually run out. Renewable sources include solar energy (and other forms indirectly dependent on solar energy such as wind energy and wave energy) and tidal energy. They are sources that cannot be used up.

  2. Exponential Decay of beer foam Design Lab

    - 30cm ruler -Masking tape - 2 Stopwatches -Marker/Pencil -Ruler -Temperature probe Hypothesis: 1. It is expected that the warmer the beer the greater the head. 2. It is expected that the faster you pour the beer the greater the head will be.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work