Garantie de satisfaction à 100% Disponible immédiatement après paiement En ligne et en PDF Tu n'es attaché à rien 4.2 TrustPilot
logo-home
Examen

PHYS 273 Actual Questions and Answers with complete solution

Note
-
Vendu
-
Pages
59
Grade
A+
Publié le
13-11-2023
Écrit en
2023/2024

PHYS 273 Actual Questions and Answers with complete solution

Établissement
Cours











Oups ! Impossible de charger votre document. Réessayez ou contactez le support.

École, étude et sujet

Établissement
Cours
Inconnu

Infos sur le Document

Publié le
13 novembre 2023
Nombre de pages
59
Écrit en
2023/2024
Type
Examen
Contient
Questions et réponses

Sujets

Aperçu du contenu

1. Energy is :
a) Power
b) A force of nature
c) Amount of momentum
d) The ability to do work


2. If you double the speed of an object how does its kinetic energy change?
a) Stays the same
b) It doubles
c) It triples
d) It quadruples


3. Which of the following could NOT be a unit of power?
a) Joules per second
b) Watts
c) Calories per hour
d) Joules


4. Home appliances that produce heat tend to be low power.
a) True
b) False


5. A process that occurs spontaneously in one direction is called
a) Reversible
b) Irreversible
c) Undeniable
d) Insatiable


6. Only a small percentage of the electricity we use in produced by converting mechanical energy
into electrical energy
a) True
b) False


7. Most countries depend on fossil fuels for more than 50% of their energy needs.
a) True
b) False
8. Energy use per person is much higher

, a) In highly developed countries
b) In less developed countries


9. In which hemisphere are most of the known coal reserves found?
a) Northern
b) Southern
c) It is approximately equal


10. There hasn't been a major mining accident in canada since the 1970’s
a) True
b) False


11. Light intensity is
a) The energy of the light on some area
b) The momentum of a light wave
c) The total energy of all the light captured
d) The power divided by the area over which the light shines


12. A flat plate collector is similar to the small solar panel in a calculator and takes the sun’s
energy and turns it into usable electricity.
a) True
b) False


13. In the future with better engineering we could have propellor style windmills with efficiencies
of up to 75%
a) True
b) False


14. Canada is one of the top 3 countries in terms of total power produced by wind
a) True
b) False




15. Spent nuclear fuel has been used up and therefore is no longer radioactive.
a) True

, b) False


16. The total fraction of energy generated by nuclear power worldwide is predicted to increase by
2040.
a) True
b) False


17. A good home insulation will not be good at transferring heat.
a) True
b) False


18. The standard that certifies energy efficient products is called
a) Energy star
b) Green star
c) Canadenergy
d) GreenLite


19. What compound is produced by incomplete combustion of fossil carbon?
a) CO2
b) CO
c) NO2
d) N2


20. Which of the following is a primary pollutant?
a) SO2
b) SO3
c) Sulphuric Acid


21. In the last 100 years, overall, the average distribution of marine taxonomic groups has
a) Shifted towards colder water regions
b) Shifted towards warmer water regions
c) Not changed significantly




22. The ratio of different types of carbon in the atmosphere tells us
a) That the increase in atmospheric CO2 is from very old sources
b) That CO2 levels have increased since the 1800s

, c) Nothing about the source of atmospheric CO2


23. A stabilization wedge is
a) A strategy that could correspond to no warming by 2050
b) A strategy that could correspond to about a 1 billion ton CO2 reduction by 2050
c) The amount of CO2 that is needed in order to have a stable temperature
d) A block of wood used to stop a door from closing


24. Climate change related changes in precipitation are predicted to
a) Be uniform
b) Increase precipitation in dry regions
c) Increase precipitation in wet regions


25. Saying “the electromagnetic spectrum” is the same as saying “visible light”.
a) True
b) False


26. How is the majority of electricity produced in Canada?
a) Solar
b) Coal
c) Uranium
d) Hydro


27. Per BTU of energy, how does the cost of natural gas compare to the cost of gasoline?
a) Gasoline is about 4 times more expensive than natural gas.
b) Gasoline is about 2 times more expensive than natural gas.
c) Gasoline is about 2 times less expensive than natural gas.
d) Gasoline is about 4 times less expensive than natural gas.


28. Saying “the electromagnetic spectrum
” is the same as saying “visible light”.
a) True
b) False
29. The sun’s energy reaches Earth in the form of
a) Chemical energy
b) Thermal energy
c) Nuclear energy
€12,79
Accéder à l'intégralité du document:

Garantie de satisfaction à 100%
Disponible immédiatement après paiement
En ligne et en PDF
Tu n'es attaché à rien


Document également disponible en groupe

Faites connaissance avec le vendeur

Seller avatar
Les scores de réputation sont basés sur le nombre de documents qu'un vendeur a vendus contre paiement ainsi que sur les avis qu'il a reçu pour ces documents. Il y a trois niveaux: Bronze, Argent et Or. Plus la réputation est bonne, plus vous pouvez faire confiance sur la qualité du travail des vendeurs.
Wiseman NURSING
S'abonner Vous devez être connecté afin de suivre les étudiants ou les cours
Vendu
6776
Membre depuis
4 année
Nombre de followers
3844
Documents
26271
Dernière vente
7 heures de cela
Premier Academic Solutions

3,9

1382 revues

5
681
4
249
3
212
2
76
1
164

Récemment consulté par vous

Pourquoi les étudiants choisissent Stuvia

Créé par d'autres étudiants, vérifié par les avis

Une qualité sur laquelle compter : rédigé par des étudiants qui ont réussi et évalué par d'autres qui ont utilisé ce document.

Le document ne convient pas ? Choisis un autre document

Aucun souci ! Tu peux sélectionner directement un autre document qui correspond mieux à ce que tu cherches.

Paye comme tu veux, apprends aussitôt

Aucun abonnement, aucun engagement. Paye selon tes habitudes par carte de crédit et télécharge ton document PDF instantanément.

Student with book image

“Acheté, téléchargé et réussi. C'est aussi simple que ça.”

Alisha Student

Foire aux questions