But because the sensor graphs the position from the sensor, the curve was upwards. He therefore proposes to set a world record for the m dash by having his time taken by an observer on a moving spacecraft.

Answer the questions in the spaces provided — there may be more space than you need. Solution of Physics by Arthur Beiser Essay Be sure to show all calculations leading to an answer.

The more momentum the object has, the harder it is to be stopped. This helps me assure the integrity of your responses. The marks for each question are shown in brackets — use this as a guide as to how much time to spend on each question.

Keep an eye on the time. Check your answers if you have time at the end. Show all calculations leading to an answer. The air track is also used to study collisions, both elastic and inelastic. If an object is in free fall, the only force acting upon it is gravity. Force acting for a given amount of time will change an object’s momentum. The second part of the experiment involved randomly dropping a ruler and having your partner catch it to determine reaction time. Fill in the boxes at the top of this page with your name, centre number and candidate number.

If we could attain the absolute speeds obtainable to us in the universe as it is, but with the speed of light being smaller, we would be able to move at speeds that would correspond to larger fractions of the speed of light, and in such instances relativistic effects would be more conspicuous.

To stop such an object, it is necessary to apply a force against its motion for a given period of time. With this, we demonstrated the impulse and change in momentum, the conservation of energy and the linear motion.

The main objective of performing this experiment is to measure the velocity and position of the ball to eventually find the acceleration of free fall. How much will the barge sink when loaded with kg of sand?

### Heinemann Physics -Content and Contexts Units 2a & 2b Solutions Essay – Words

Since there is very little energy lost through friction it is easy to demonstrate how momentum is conserved before and after a collision. For questions 1—10, in Section A, select one answer from Sign Up Sign In. The list of data, formulae and relationships is printed at the end of this booklet. As the force acts upon the object for a given amount of time, the object’s velocity is changed, and hence, the object’s momentum is changed.

Information The total mark for this paper is Based on your observations of the 4 collisions, describe the physical difference between elastic and inelastic collisions. In the early 15th century, Leonardo Da Vinci fantasized the human species as being able to fly with a contraption, and so with that, he set off on a quest to find the answer by designing one radical plan after another, all leading to ultimate failure, but little did he know that his ingenious plans laid out the basic foundations for modern scientists alike, one of them being George Cayley, who took the study of flight even further, discovering the art of gliding flight by creating full-scale models of working gliders.

The object used in this experiment was a golf ball that provided some acceleration when dropped. If the speed of light were smaller than it is, would relativistic phenomena be more or less conspicuous than they are now?

Consider eight two-cubic centimeter 2 cm3 sugar cubes stacked so that they form a single 2 x 2 x 2 cube.

A computer program called, DataStudio, was used to create a graph of position vs. Flight can be simply characterized as the [powered] gliding of an object through the air, but the wonders of soaring through the air does not simply stop there, instead, flight is a whole myriad of forces acting on each other, as so found out by scientists decades ago.

To have momentum, the object must be moving. Either way, a force will change the velocity of an object When a steadily-flowing gas flows from a Linear motion is motion along a straight line, and can therefore be described mathematically using only one spatial dimension.

A car or glider travels on a cushion of air provided which reduces friction.

## Heinemann Physics -Content and Contexts Units 2a & 2b Solutions

Many just stare up into the blue skies above and assume. Thus, it would require a greater amount of force or a longer amount of time or both to bring such an object to a halt. Uniform linear motion with constant velocity or zero acceleration. A downlod barge 6 m long and 3 m wide floats in fresh water.

If the data were collected from the doanload then the curve would open downward. Actually, when the effects of length contraction are included discussed in Section 1. Candidates may use a scientific calculator. Essay about Physics Final Exam Version 2b The unit of momentum is kgms