• 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. centripetal force lab (DCP, CE)

    First of all, it is not possible to unsure that the rotation of the swing being 100% horizontal to the ground and the swing of the ball is always tilted to one side. When the stopper reaches to the higher part of the circular loop, part of the weight of the stopper will be added to the centripetal force.

  2. Centripetal Force

    Keep adding an extra 10 g mass to the mass carrier. Data Collection: Radius of the string, r = 0.3 m Mass of the rubber stopper: m=0.0187 kg Table 3.1 Result of time taken for 10 revolutions for mass 10 g Trial Time Taken t(s)

  1. 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)

  2. Conservation of Momentum Experiment.

    Final Percent Uncertainty for Average Initial Velocity of Cue Puck: 1.136...%+0.180...%=1.317% Final Percent Uncertainty for Average Initial Velocity of Stationary Puck: N/A No Movement Final Percent Uncertainty for Average Final Velocity of Cue Puck: 0.714...%+0.180...%=0.895% Final Percent Uncertainty for Average Final Velocity of Stationary Puck: 0.90%+0.18145=1.081% Final Percent Uncertainty of

  1. Forces Lab. I decide to investigate the relationship between the propelling force exerted on ...

    constant by using the same runway, I expect Fweight will be proportional to d. Method: Apparatus List Margarine tub Masses Long lab table as runway Long sting Rulers Pencil 1. Set up the apparatus as shown in diagram 1 in the introduction.

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

    Measure the weight of the golf ball and record the weight. 5. With the simply sand container, place it underneath the table clamp where the golf ball will be dropped. Level off the sand with the Popsicle stick. 6.

  1. 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.

  2. HL Physics Revision Notes

    sources of energy are finite sources which are being depleted and will run out. They include fossil fuels (oil, natural gas and coal) and nuclear fuels such as uranium. The energy in these sources is a form of potential energy which can be released by humans.

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