PHYSICS HIGH SCHOOL

Develop a mnemonic for branches of physics.

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Answer 1
Answer:

Answer:

  1. For physics, a common mnemonic is "My Very Earnest Mother Just Served Us Nine Pizzas" to help remember the order of the planets in our solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto).
  2. "SOH CAH TOA" - This helps remember the trigonometric ratios in a right triangle: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.
  3. "King Henry Died Drinking Chocolate Milk" - This is used to remember the metric system prefixes in order of magnitude: Kilo, Hecto, Deca, (Base Unit), Deci, Centi, Milli.
  4. "ROY G. BIV" - This helps remember the colors of the visible light spectrum: Red, Orange, Yellow, Green, Blue, Indigo, Violet.
  5. "F = ma" - This equation represents Newton's second law of motion, stating that Force equals mass times acceleration.
  6. "E = mc²" - This equation represents Einstein's theory of relativity, stating that Energy equals mass times the speed of light squared.
  7. "PEMDAS" - This mnemonic helps remember the order of operations in math: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
  8. "VIRUS" - This helps remember the formula for Ohm's Law: V (Voltage) = I (Current) x R (Resistance) or V = IR.
  9. "KE = 1/2 mv²" - This mnemonic represents the formula for kinetic energy: Kinetic Energy = 1/2 x mass x velocity squared.
  10. "PE = mgh" - This helps remember the formula for gravitational potential energy: Potential Energy = mass x gravitational acceleration x height.
  11. "F = G(m₁m₂/r²)" - This mnemonic represents Newton's law of universal gravitation, where F is the force between two masses, G is the gravitational constant, m₁ and m₂ are the masses, and r is the distance between the centers of the masses.
  12. "P = IV" - This mnemonic helps remember the formula for power in an electrical circuit: Power = Current x Voltage.
  13. "E = hf" - This represents the formula for energy of a photon, where E is energy, h is Planck's constant, and f is the frequency of the electromagnetic wave.

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What is the relationship between the direction of current and direction of electron flow in a current-carrying wire?

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Explanation :

The direction of current flow is in opposite direction to that of the direction of electron flow.

Electric current is defined as the electric charge per unit time. Simply it is the flow of electrons in a circuit. When an electric potential is applied in a circuit, the current moves from the positive terminal of a battery to the negative terminal.

But the electrons travel from negative to the positive terminal i.e in the direction opposite to that of current flow.
Classical current flows in the opposite direction (positive to negative) to the electron flow (negative to positive).

A corvette can accelerate during high speeds at about 2.0 m/s2. At this rate how long does it take the car to accelerate from 80 km/h to 160 km/h? Answer in seconds. Round to two decimal places.

Answers

Answer:

11.11 s

Explanation:

Given:

u = 80 km/h = 22.22 m/s

v = 160 km/h = 44.44 m/s

a = 2.0 m/s²

Find: t

v = u + at

44.44 m/s = 22.22 m/s + (2.0 m/s²) t

t = 11.11 s

How many joules are needed each day

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I believe the answer is 4,200 Joules each day
the amount of joules needed to preform work depends on the force and distance there is no set amount of joules per day.

Sum up in a few sentences what did Cavendish discover and how did he do it?

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He was a British philosopher, and an important experimental and theoretical chemist. He is known for his discovery of hydrogen. He at that time called it "inflammable air".

What happens to the current flowing through a circuit as resistance increases?

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As resistance increases in a circuit, the current flowing through the circuit decreases.

This is because resistance opposes the flow of current, so as resistance increases, it becomes more difficult for the current to flow.

This is described by Ohm's Law, which states that the current in a circuit is directly proportional to the voltage and inversely proportional to the resistance.

Therefore, as resistance increases, the current must decrease in order to maintain the same voltage in the circuit.

To know more about current refer brainly.com/question/29396299

#SPJ11

Which region of the electromagnetic spectrum has the longest wavelength?

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That's the region we call "radio waves".
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