The Effect of Weight on Distance Traveled
Aim
===
I am going to investigate how the weight of an object affects the
distance it can travel. I will use a margarine tub as my object to
carry out my investigation.
Knowledge
=========
From preliminary work and research on the Internet I have gained some
knowledge. This will help me carry out my experiment and understand
it.
Equations
---------
Work done (j) = force applied (N) x distance (m)
The previous equation also applies for Elastic Potential Energy.
Acceleration (m/s²) = force (N) mass (kg)
Forces
------
Friction = the force which resists movement between two surfaces that
are in contact.
Gravity = the force that pulls objects towards the Earth.
Air resistance = the force that acts in the opposite direction to the
motion when an object is moving through the air.
When an object is stationary or at a constant speed we know that the
forces acting on it are balanced. However, if an object changes
direction, shape or size or if it slows down or speeds up the forces
acting on it are unbalanced.
The bigger the force on an object the greater the work done.
Energy
Elastic Potential Energy = stored in an elastic object when work is
done on the object to change its shape.
Kinetic Energy = the energy an object has because of its movement. An
object has more kinetic energy the greater its mass and speed.
Prediction
==========
I predict that as the weight in the margarine tub is increased the
distance it will travel is decreased. I think that the elastic
potential energy will also decrease as the weight increases.
Diagram of apparatus
====================
Stool
Newton meter
Weights
Chalk
Margarine tub
Metre rule
Elastic band
Method
======
1. Set up the equipment as shown in the diagram on the floor.
m= 10km2 x 1000m x 1000m = 107m2 107m2 x 15= 1.5 x 1.8m3 = 1.5 x 1011kg
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