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Chemistry EOY YR9 > Physics EOY yr9 > Flashcards

Physics EOY yr9 Flashcards

(66 cards)

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1
Q

What is the formula for calculating speed?

A

Speed = Distance / Time

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2
Q

True or False: The unit of speed is meters per second (m/s).

A

True

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3
Q

Fill in the blank: The formula for calculating acceleration is __________.

A

Acceleration = (Final velocity - Initial velocity) / Time

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4
Q

What is the unit of acceleration?

A

Meters per second squared (m/s²)

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5
Q

What does the equation F = ma represent?

A

Force equals mass times acceleration.

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6
Q

Multiple choice: What is the gravitational force on Earth?

A

9.81 m/s²

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7
Q

True or False: Mass and weight are the same thing.

A

False

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8
Q

What is the formula for calculating weight?

A

Weight = Mass x Gravitational Field Strength

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9
Q

Fill in the blank: The formula for kinetic energy is __________.

A

Kinetic Energy = 0.5 x Mass x Velocity²

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10
Q

What is the unit of energy?

A

Joules (J)

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11
Q

What does the equation E = mc² represent?

A

Energy equals mass times the speed of light squared.

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12
Q

Multiple choice: Which of the following is a scalar quantity?

A

Distance

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13
Q

True or False: Velocity is a vector quantity.

A

True

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14
Q

What is the formula for gravitational potential energy?

A

Gravitational Potential Energy = Mass x Gravitational Field Strength x Height

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15
Q

Fill in the blank: The formula for work done is __________.

A

Work Done = Force x Distance

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16
Q

What is the unit of force?

A

Newtons (N)

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17
Q

Multiple choice: What does the symbol ‘s’ represent in physics equations?

A

Displacement or distance

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18
Q

True or False: Power is the rate of doing work.

A

True

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19
Q

What is the formula for calculating power?

A

Power = Work Done / Time

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20
Q

Fill in the blank: The unit of power is __________.

A

Watts (W)

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21
Q

What does the equation P = Fv represent?

A

Power equals force multiplied by velocity.

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22
Q

Multiple choice: Which equation represents Ohm’s law?

A

V = IR

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23
Q

True or False: Current is measured in volts.

A

False

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24
Q

What is the formula for calculating the total resistance in a series circuit?

A

Total Resistance = R1 + R2 + R3 + …

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25
Fill in the blank: The formula for electrical energy is __________.
Electrical Energy = Power x Time
26
What is the unit of electrical energy?
Kilowatt-hours (kWh)
27
What does the equation Q = mcΔT represent?
Heat energy equals mass times specific heat capacity times temperature change.
28
Multiple choice: What is the specific heat capacity of water?
4.18 J/g°C
29
True or False: The formula for pressure is Pressure = Force / Area.
True
30
What is the unit of pressure?
Pascals (Pa)
31
Fill in the blank: The formula for density is __________.
Density = Mass / Volume
32
What is the unit of density?
Kilograms per cubic meter (kg/m³)
33
What does the equation V = A x d represent?
Volume equals area times depth.
34
Multiple choice: Which of the following is a unit of frequency?
Hertz (Hz)
35
True or False: The period of a wave is the inverse of its frequency.
True
36
What is the formula for calculating wave speed?
Wave Speed = Frequency x Wavelength
37
Fill in the blank: The formula for calculating the force of gravity between two masses is __________.
F = G(m1m2/r²)
38
What does 'G' represent in the gravitational force equation?
The gravitational constant.
39
Multiple choice: Which of the following is a type of potential energy?
Elastic potential energy
40
True or False: An object in free fall experiences only gravitational force.
True
41
What is the formula for calculating the moment of a force?
Moment = Force x Distance from pivot
42
Fill in the blank: The unit of moment is __________.
Newton-meters (Nm)
43
What does the principle of conservation of energy state?
Energy cannot be created or destroyed, only transformed.
44
Multiple choice: Which equation relates the change in momentum to force?
F = Δp/Δt
45
True or False: The total momentum of a closed system is constant.
True
46
What is the formula for calculating efficiency?
Efficiency = (Useful energy output / Total energy input) x 100%
47
Fill in the blank: The unit of efficiency is __________.
Percentage (%)
48
What does the equation ΔE = Q - W represent?
Change in internal energy equals heat added minus work done.
49
Multiple choice: Which of the following is a form of energy transfer?
Conduction
50
True or False: Heat always flows from a cooler object to a warmer object.
False
51
What is the formula for calculating the pressure difference in a fluid?
Pressure difference = Height x Density x Gravitational field strength
52
Fill in the blank: The formula for calculating the amplitude of a wave is __________.
The maximum displacement from the rest position.
53
What does the term 'wavelength' refer to?
The distance between successive crests of a wave.
54
Multiple choice: What is the SI unit for measuring temperature?
Kelvin (K)
55
True or False: Absolute zero is 0 Kelvin.
True
56
What is the formula for calculating the total energy in a system?
Total Energy = Kinetic Energy + Potential Energy
57
Fill in the blank: The formula for calculating the force required to lift an object is __________.
Force = Mass x Gravitational Field Strength
58
What does the term 'friction' refer to?
The resistance that one surface or object encounters when moving over another.
59
Multiple choice: What is the primary factor affecting air resistance?
Speed of the object
60
True or False: An object will continue to move at a constant velocity unless acted upon by a net external force.
True
61
What is the formula for calculating torque?
Torque = Force x Distance from pivot x sin(θ)
62
Fill in the blank: The unit of torque is __________.
Newton-meters (Nm)
63
What does the term 'momentum' refer to?
The product of an object's mass and its velocity.
64
Multiple choice: What is the relationship between pressure and volume in a gas at constant temperature?
Boyle's Law: Pressure x Volume = Constant
65
True or False: The density of a gas decreases when it is heated.
True
66
What is the formula for calculating the total energy of a spring?
Elastic Potential Energy = 0.5 x Spring constant x Extension²

Chemistry EOY YR9 (2 decks)

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