National 5 Physics Practice Exam Papers (Sqa National 5) (Practice Papers for SQA Exams)

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gravitational field strength, g, is the weight per unit mass. It is measured in Newtons per kilogram. It is the force of gravity or pull on each kilogram of mass.

Now you’ve finished the waves & radiation unit, try some past paper questions from old credit & intermediate 2 exam papers. A source has an activity of 800 kBq after being stored for 4 days. If the half life is 1 day, what was its initial activity? Principle components of galaxies. Living stars emit radiation across the electromagnetic spectrum. Peak depends on the heat of the surface.Now you’ve finished the electricity & energy unit, try some past paper questions from old credit & intermediate 2 exam papers. Now you’ve finished the dynamics & space unit, try some past paper questions from old credit & intermediate 2 exam papers. This table contains links to past papers from the SQA National 5 Physics exam. These papers and solutions are reproduced to support SQA qualifications on a non-commercial basis according to SQA conditions of use. A source has an activity of 40 kBq after being stored for 10 years. If the half life is 2 years, what was its initial activity?

Many light sources produce a continuous spectrum containing all the wavelengths of visible light, e.g. an ordinary light bulb.Mass is a measure of the amount of matter in an object. It is measured in kilograms. Wherever you go your mass stays the same. The activity of a source drops from 720 MBq to 45 MBq in 20 years. Calculate the half life of the source. Light does not travel at an infinite speed. It takes time to travel. It is so fast that we do not usually notice, although out in space the distances involved are so big that light takes a reasonable amount of time to reach us. Here are the results for the Indium-116 half life experiment. Warning, do not plot a graph in 15 minute intervals or you will have more difficulty finding the half life. Make the scale ten minute intervals.

colour temperature line spectra summary of the information we can get from the light received from any star (surface temperature of the star, what the start is made of, etc.) A gravity assist around a planet changes a spacecraft’s velocity (relative to the Sun) by entering and leaving the gravitational field of a planet. The spacecraft’s speed increases as it approaches the planet and decreases while escaping its gravitational pull. Because the planet orbits the sun, the spacecraft is affected by this motion during the manoeuver. To increase speed, the spacecraft flies with the movement of the planet (taking a small amount of the planet’s orbital energy); to decrease speed, the spacecraft flies against the movement of the planet. The sum of the kinetic energies of both bodies remains constant. This short video shows a night-time re-entry over Mexico, with the orbiter on its way to land at the Kennedy Space Centre. There are no engines running, all that heat is being produced by re-entry to the atmosphere. If you’ve read all that stuff on forces, take a break to watch the Glesga Physics Newton’s Laws videoRadiation doses are mentioned in this article in The Guardian newspaper. You can learn about absorbed dose, equivalent dose and equivalent dose rate here and in more detail on Bitesize. A geostationary satellite is not actually stationary. By rotating at the same rate as the Earth, the satellite always appears to sit in the same point in our sky. This is quite handy, since it would be a nuisance if we had to move dish aerials to follow the location of a satellite broadcasting our TV signals. My thanks to J Boyle for passing these on. They are really good practice for students to use for revision for N4/5 etc. Thanks to Iain Glennie for some of the early answers (it’s not because I couldn’t do them), he just got there first! CREDIT PAPERS Paper In addition there are several safety precautions relating to the storage and monitoring of radioactive substances.

Here are the Intermediate 2 Physics Papers. The table isn’t yet complete, but you might want to start looking over some questions. Many of these could pop up on National 5 papers. Int 2 Papers Use your knowledge of physics to comment on what the ball’s horizontal distance from the edge of the table would and would not depend on. You should now have had plenty of practice at finding the half life graphically, nothing should phase you now. Can you use the kinetic theory of gases to describe the pressure-temperature, pressure-volume or volume-temperature relationships? If you are having difficulties with this, try reading this blog post.

Creating your own assessment materials from SQA question papers

When neutrons split nuclei by fission and extra neutrons are produced which can split further nuclei. Large quantities of energy are produced. Reducing It is measured in units of time, e.g seconds, minutes, days, years, millions of years!) Note the SQA do NOT accept: Time for radiation/radioactivity/ count rate to half Unauthorised people must not be allowed to handle radioactive substances. In particular, in the United Kingdom, no one under 16 years of age may handle radioactive substances.