A ramp like the one in the Figure below is another example of an inclined plane. Inclined planes make it easier to move objects to a higher elevation. The sloping surface of the inclined plane supports part of the weight of the object as it moves up the slope. As a result, it takes less force to move the object uphill.
Q. What are the advantages of simple machines?
Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.
Table of Contents
- Q. What are the advantages of simple machines?
- Q. Which statement best explains correct Fiona is correct?
- Q. Which two factors does the power of a machine depend on?
- Q. What best defines the relationship between work and energy?
- Q. How does work affect energy?
- Q. What is the final result of the work energy process?
- Q. Is energy equal to Workdone?
- Q. Why are very high temperatures and pressures required for fusion to occur quizlet?
- Q. Why are very high temperature and pressures required for fusion to occur?
- Q. Why are such high temperatures required for nuclear fusion to occur atomic nuclei always have a electric charge so they each other electrically at speed this effect is enough to keep them apart even if they start heading straight toward each?
- Q. Why does nuclear fusion release so much energy?
- Q. Does nuclear fusion occur in the Earth’s core?
- Q. Why does hydrogen fusion inside stellar cores require such high temperatures?
- Q. Could a fusion reactor explode?
Q. Which statement best explains correct Fiona is correct?
Which statement best explains who is correct? Fiona is correct because less than three machines are shown in the diagram. Fiona is correct because the diagram shows two individual simple machines. Chad is correct because more than one machine is shown in the diagram.
Q. Which two factors does the power of a machine depend on?
The two factor on which the power of machine depend on work and time.
Q. What best defines the relationship between work and energy?
Which statement best defines the relationship between work and energy? Work can transfer energy between objects and cause a change in the form of energy. When a spring is compressed, the energy changes from kinetic to potential.
Q. How does work affect energy?
Work changes the amount of mechanical and internal energy possessed by objects. When work is done on a system or object, energy is added to it. When work is done by a system or object, it gives some of its energy to something else. Throwing a ball means a hand applies a force as an arm swings forward.
Q. What is the final result of the work energy process?
The final result of the work energy process is energy.
Q. Is energy equal to Workdone?
The change in the kinetic energy of an object is equal to the net work done on the object. This fact is referred to as the Work-Energy Principle and is often a very useful tool in mechanics problem solving.
Q. Why are very high temperatures and pressures required for fusion to occur quizlet?
Why does nuclear fusion require high temperatures and pressures ? To bond together, two nuclei must be thrown together with great force. This is because every nucleus has a positive charge and the nuclei repel each other when they come close.
Q. Why are very high temperature and pressures required for fusion to occur?
First, fusion requires both extremely high temperatures to give hydrogen atoms enough energy to overcome repulsion between the protons. Energy from microwaves or lasers must be used to heat hydrogen atoms to the necessary temperatures. Second, high pressures are needed to squeeze hydrogen atoms close enough to fuse.
Q. Why are such high temperatures required for nuclear fusion to occur atomic nuclei always have a electric charge so they each other electrically at speed this effect is enough to keep them apart even if they start heading straight toward each?
Why are such high temperatures required for nuclear fusion to occur? A plasma at high temperatures has particles that travel at high speed, and some nuclei have the kinetic energy required to approach close enough for the incredibly-short-ranged strong force to attract the nuclei to each other and bind them.
Q. Why does nuclear fusion release so much energy?
In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. In the process, it also releases much more energy than most fusion reactions.
Q. Does nuclear fusion occur in the Earth’s core?
The inner core comprises an H-rich core and a D-rich core. A substantial amount of heat is generated by nuclear dynamic fusion of deuterons squeezed in highly compressed hexagonal close-packed (hcp) Fe-rich crystal lattice near the inner core centre.
Q. Why does hydrogen fusion inside stellar cores require such high temperatures?
The amount of repulsion is larger for nuclei with more positive charge so the fusion of elements with greater positive charge requires greater temperatures and densities than that needed for fusing elements with small positive charge. This is why stars fuse hydrogen nuclei before they fuse other nuclei.
Q. Could a fusion reactor explode?
A fusion reactor will not explode, it uses plasma to generate heat and so can’t explode.
