• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6

# Examine the relationship between the height a ball is dropped from and the vertical distance from the point of impact that its first bounce travels.

Extracts from this document...

Introduction

Investigation to find out what affects the height that a golf ball bounces to

Aim: I wish to examine the relationship between the height a ball is dropped from and the vertical distance from the point of impact that its first bounce travels.

Apparatus: Tape Measure, A Golf Ball, Ping Pong Ball, Floor

Plan:

Using a tape measure suspended and weighted at the bottom (to ensure verticality), measure the appropriate starting height. The centre of the ball should be aligned with the relevant markings on the tape and dropped so that the tape does not foul the path of the ball. A spotter should be ready to sight up the height of the bounce and as level with the apex of the balls path as possible. A tolerance of 10mm is realistic. This should be repeated five times each at heights of 0.5m, 1m, 1.5m, 2m and 2.5 meters.

In this experiment I will measure the height reached after the bounce, because that is what I wish to investigate. I will also need to measure the independent variable, the height at which the ball is dropped from. To measure both of these I will use metre sticks and I think that they will be accurate enough considering that we will only have someone’s judgement to go by with regards to how high it bounces to.

Middle

Momentum: The formula for momentum is Momentum = Mass × Velocity. It is possible to work out the average velocity of the falling ball using the formula v=√ (2gh)(a rearranged version of the formulas for gravitational potential energy and kinetic energy). Since the only thing within this formula that will change is the height it is possible to see that a ball dropped from a higher height will have a higher average velocity, unless it reaches terminal velocity. Therefore a ball dropped from a higher height, having a bigger velocity will subsequently have more momentum. Before colliding with the floor the momentum of the ball is its mass multiplied by its velocity and the momentum of the floor is 0. When the ball hits the floor it stops momentarily but because of the conservation of momentum the momentum must still exist after the collision in the particles of the floor and the ball, which are now moving. When the ball bounces up again the particles are still moving so they have some momentum which means that the ball cannot have as much momentum as it did before the collision and therefore, since its mass has not changed it must have a smaller velocity.

Elasticity: Elasticity is the ability of a solid to recover its shape once deforming forces are removed. A golf ball has this ability due to the elastic bands inside it.

Conclusion

Despite all the inaccuracies in the method the results seem surprisingly accurate. The averages fall in a near perfect straight line, which would suggest that they are accurate. Assuming the results were read fairly accurately it would lead me to believe that the other issues of inaccuracy are fairly negligible. To achieve such a straight line probably means that our results are accurate enough to base a conclusion on.

The experiment could be made more accurate by filming each bounce and playing it back in slow motion to obtain more accurate measurement, for example to the nearest 5mm. I could also go to extra lengths to make sure that the ball landed in exactly the same place each time and that it was dropped and not thrown.

The results are fairly reliable because we repeated each height five times so that anomalous results would become obvious. Very few of our results varied that much within each height and therefore our results are probably quite reliable. In order to make the results even more reliable more repeats could be carried out, however I do not think this is entirely necessary as the heights reached were always so close to the same percentage.

If I were to complete a similar experiment I would wish to find out if after a certain height the golf ball can no longer maintain the percentage height reached after a bounce, as I discovered with the ping-pong ball. I would also like to see if the same percentage of height is lost after a second, third, fourth or fifth bounce etc.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion 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

# Related GCSE Forces and Motion essays

1. ## Investigating Impact Craters

The ball was rolled 3 times and an average of crater length and depth taken. Look at the last five points on the graph - they seem to show a type of exponential shape. The only way to know for sure is to plot a graph of log length against Angle for those last five points.

2. ## Bouncing Ball Experiment

upon the time taken to conduct the experiment and any other factors that may become apparent during the preliminary experiment. Parallax error will be avoided by dropping the ball one time that will not be measured and placing a blob of blue tack onto the meter rule at the approximate height it bounced to.

1. ## Physics Lab - Conservation of momentum

= (97 / 100)m / 3.67s = 0.264 m/s Momentum before collision = mass x initial velocity = (496.29 / 1000) kg x -0.423m/s = -0.209 kgm/s Momentum after collision = mass x final velocity = (496.29 / 1000) kg x 0.264m/s = 0.131 kgm/s Data table #4, showing the change in momentum and average results from the 2 methods.

2. ## Investigation is to see how changing the height of a ramp affects the stopping ...

It should have been the other way round because as I have predicted the greater the height of the ramp the greater the stopping distance and velocity and therefore as 9cm is greater than 8cm it should have a grater velocity and stopping distance when the ramp is 9cm high.

1. ## In this experiment I aim to find out how the force and mass affect ...

One cannon ball was heavier than the other was. Galileo's professor was highly sceptical about Galileo's idea and so Galileo had the professor lie at the bottom of the tower with his ear to the ground! This was so that the professor could listen out for the two thuds as one cannon ball hit the ground before the other one.

2. ## How does the temperature of a squash ball affects the impact time of the ...

Therefore the suggestion was abandoned. 3. Conduction sensor Fix a piece of foil on a dense plate (cutting board), on the surface place another piece of foil closely but without touching the first one. Both foils are connected to a scalar timer with wires.

1. ## The aim of this experiment is to investigate the relationship of the height of ...

I will change it by putting books and magazine underneath the sand tray. The range of the height should be around 20cm to 80cm. It is usually hard to measure the h2 distance exactly, so it will be more or less �1cm.

2. ## This investigation is associated with the bounce of a squash ball. I will be ...

will be equal to the kinetic energy just before it hits the ground. On a molecular level, the rubber is made from long chains of polymers. These polymers are tangled together and stretch upon impact. However, they only stretch for an instant before atomic interaction forces them back into their original, tangled shape and the ball shoots upward.

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