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

# To investigate how the angle of a slope affects the acceleration of a marble.

Extracts from this document...

Introduction

Motion Down a Slope

Aim:

To investigate how the angle of a slope affects the acceleration of a marble.

Introduction:

As bodies freely roll down a slope they accelerate. Various factors may affect the acceleration.

Variables:

There are a number of things that affect the acceleration of the marble:

• Angle/Gradient of slope. Changing the angle of the slope would affect the acceleration of the squash ball as it changes the energy the marble starts with as steeper angles raise the slope start higher so the marble would have more potential energy.
• Mass of marble.Changing the mass of the marble would affect the acceleration because it means it has more energy pulling it downwards and so would accelerate faster.
• Surface. Changing the surface may change the amount of friction between the slope and the marble. This would affect the amount of energy absorbed. If there was more friction then more energy is absorbed so the marble has less pushing it along and so accelerates slower.
• Gravity. A change in the gravity would change the amount of energy pulling down the marble and so change the amount of energy pushing it along and so change the acceleration of the marble.
• Aerodynamics. A change in the aerodynamics would create a change in the air friction. This would change the amount of energy absorbed and so change the amount of energy left pushing it along changing the acceleration.

Middle

## (cm)

Time taken for marble to roll down slope (sec)

(°)

1

2

3

4

5

Average

10

26

1.48

1.50

1.49

1.51

1.49

1.49

20

51

1.14

1.12

1.11

1.10

1.16

1.13

30

75

1.09

1.14

1.12

1.11

0.97

1.09

40

96

0.62

0.69

0.68

0.66

0.63

0.66

50

115

0.61

0.67

0.68

0.69

0.63

0.66

60

130

0.60

0.60

0.66

0.61

0.61

0.61

70

141

0.51

0.54

0.55

0.56

0.56

0.54

80

148

0.56

0.57

0.58

0.56

0.58

0.57

90

150

0.55

0.56

0.56

0.57

0.59

0.57

Acceleration:

To work out the acceleration use the formula:

A=2S/T2

Conclusion

My results suggest that the theoretical data was correct, as mine where only slower due to friction, and they support the conclusion. Further investigation could be done to help support this. For example, using a perfectly round ball such as a metal ball bearing, and a smooth metal slope. This would remove some of the friction and get closer results to the theoretical set. Also for further work the marble could be rolled down different texture slopes to investigate the effects of varying amounts of friction. This would provide additional information, which would help identify exactly how much friction does affect the results, compared to the theoretical set.

To extend the investigation you could do the same experiment but keep the slope at the same angle and change the mass of the ball. This would investigate how the mass effects the acceleration.

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. ## Factors Affecting the Speed of a Car after Freewheeling down a Slope

Improvements in my final experiment: ? The trolley will be started 150cm from the bottom of the runway, in order to make the movement of the trolley more accurate. ? The trolley will be released and the power pack started at the same time by myself, this is to avoid the delay in reaction time between pupils.

2. ## Investigation to Determine how the Height of a slope Affects the Speed of an ...

either the marble will stop completely or it will slow down so much that the speed on the run-off distance will be a lot slower than the speed of the object at the bottom of the slope and that is what we are trying to work out.

1. ## Friction and its issues.

That's why it is easily to slide on ice. Without friction life would be very difficult. None of the above we can do without friction. According to the first law of Newton, if there is no force on something, if still, it will say still, and if moving, it will continue moving in a straight line with a steady speed.

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

Ranges and amounts To make this investigation successful, we must choose a sensible range, and amount, of readings to record in order to come up with a useful and informative outcome. For example, in the primary experiment it would be pointless to experiment with heights ranging from 1cm-2cm because the speed difference would be minor.

1. ## Investigating the amazingness of theBouncing Ball!

The closer to +1 the coefficient is the more elastic the collision therefore the bouncier the ball is. 2- Although a graph cannot be constructed for the rubber ball at -17�c, the decay constant (gravity) will obviouly be a lot higher.

2. ## Investigation into Friction.

This will give a total of nine readings for the smooth hardboard part of the experiment and seven readings for the rough hardboard part of the experiment. Predictions From the definition that Ordinary Level Physics gives us of the coefficient of friction, we can say that the rougher the surface, the greater the coefficient of friction will be.

1. ## Prove that &amp;quot;Frictional Forces are Surface dependant&amp;quot;.

The value of the coefficient ? is determined by the two adjacent surfaces and is not a strict constant. Its value varies from about 0.15 to 0.6 for most dry and fairly smooth surfaces. It depends only on the nature of the two bodies, and not (as might be supposed)

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

The Kinetic Theory Of Gases The kinetic theory rest essentially upon two hypotheses: * That there are such things as molecules, and that a gas is a collection of molecules * That these molecules are in constant random motion, and that heat is a manifestation of this molecular motion. • Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to 