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Questions and Answers
What is the SI unit for electric field?
What is the SI unit for electric field?
What is the electric field strength if the force is 0.30 N and the charge is 1 × 10^-6 C?
What is the electric field strength if the force is 0.30 N and the charge is 1 × 10^-6 C?
If an electric field of $1.5 × 10^5 N/C$ is applied, what is the charge that experiences a force of 0.080 N?
If an electric field of $1.5 × 10^5 N/C$ is applied, what is the charge that experiences a force of 0.080 N?
What is the electric field strength produced by a charge of $3 × 10^{-6} C$ at a distance of 7.07 m?
What is the electric field strength produced by a charge of $3 × 10^{-6} C$ at a distance of 7.07 m?
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Using Pythagoras' theorem, if two charges are placed at opposite corners of a square with each side measuring 5 m, what is the distance between them?
Using Pythagoras' theorem, if two charges are placed at opposite corners of a square with each side measuring 5 m, what is the distance between them?
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What is the correct formula to find the spring constant (k) if the force (F) and displacement (x) are known?
What is the correct formula to find the spring constant (k) if the force (F) and displacement (x) are known?
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Which statement about longitudinal waves is true?
Which statement about longitudinal waves is true?
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How is the pitch of a sound related to its frequency?
How is the pitch of a sound related to its frequency?
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According to Coulomb's law, what happens to the electrostatic force when the distance between two charges is doubled?
According to Coulomb's law, what happens to the electrostatic force when the distance between two charges is doubled?
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Which physical quantity is directly related to the loudness of a sound?
Which physical quantity is directly related to the loudness of a sound?
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In the formula F = -kx, what does the 'x' represent?
In the formula F = -kx, what does the 'x' represent?
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What type of waves can transfer energy without requiring a medium?
What type of waves can transfer energy without requiring a medium?
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What term describes the highness or lowness of sound?
What term describes the highness or lowness of sound?
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Study Notes
Grade 10 Advanced Physics EOT Solution Term 1 2024-2025
- Subject Teacher: Mr. Kailas Jadhav
- Academic Year: 2024/2025
- Term: 1
- Subject: Physics/Inspire
- Grade: 10
- Stream: Advanced
- Maximum Overall Grade: 100
- Exam Duration: 150 minutes
- Mode of Calculation: SwiftAssess & Paper-Based
- Calculator: Allowed
- Number of MCQ: 15
- Marks of MCQ: 4
- Number of FRQ: 4
- Marks per FRQ: 8-12
Multiple Choice Questions (MCQ)
- Questions range from 1 to 15
- Questions might appear in a different order on the exam
Pendulum
- The period of a pendulum (T) is calculated using the equation T = 2π√(l/g), where l is the length of the pendulum and g is the acceleration due to gravity.
- On Earth, a pendulum of length 1.0 m has a period of 2.0 s.
- On the Moon, a pendulum with a period of 2.0 s has a length of 0.16 m, given g = 1.6 N/kg
Challenge Question
- On a planet with an unknown value of g, a pendulum of length 0.75 m has a period of 1.8 s, with g being 9.1 m/s²
Hooke's Law
- The force exerted by a spring (F) is equal to the spring constant (k) times the distance the spring is stretched or compressed from its equilibrium position (x): F = -kx
- The spring constant of a spring that stretches 12 cm when an object weighing 24 N is hung from it, is 2 × 10² N/m.
- The elastic potential energy (PEsp) of a spring with a spring constant k is calculated as PEsp = 1/2kx², where x is the distance the spring is compressed or stretched.
Superposition of Waves
- Sketch two wave pulses whose interference produces a pulse with an amplitude greater than either of the individual waves.
Types of Mechanical Waves
- Longitudinal waves: Particles vibrate parallel to the direction of wave propagation
- Transverse waves: Particles vibrate perpendicular to the direction of wave propagation
- Surface waves: A combination of transverse and longitudinal waves; An example is water waves.
Wave Characteristics
- The amplitude and velocity of a transverse wave remain unchanged when the frequency increases, and the period and wavelength decrease.
- Longitudinal waves are waves in which particles vibrate in a direction parallel to the wave propagation; Nearly all mediums, including solids, liquids, and gases, transmit longitudinal waves.
Wave Characteristics (Sound)
- Pitch: Determined by the frequency (higher frequency = higher pitch) of a sound wave
- Loudness: Determined by the amplitude (larger amplitude = louder sound) of a sound wave.
Sound Level and Decibels
- The human ear can detect a wide range of sound intensities.
- Decibels (dB) are used to measure sound intensity on a logarithmic scale.
- A 10-dB increase means the intensity is 10 times greater.
- The sound level for various sounds is shown in figure 4
Sources of Sound
- Sound is produced by vibrations.
- Examples of sound sources include gongs, cymbals, drums, and loudspeakers.
Resonance
- Resonance occurs when the frequency of an external force matches the natural frequency of a system. This leads to a larger amplitude of vibration.
- Resonance in air columns: Different lengths produce different pitches, and a change in length changes the fundamental resonant frequency, creating different musical notes.
Standing Waves
- Standing waves are waves that reflect within an air column and create a pattern of nodes and antinodes.
Resonance Frequency in a Closed Pipe
- If one end is closed it must act as a node
- Resonant frequencies are found every one-fourth of a wavelength interval.
- The first resonance length is slightly greater than one-fourth of a wavelength
Resonance Frequencies in an Open Pipe
- The shortest column that can resonate with both ends as nodes, is one-half wavelength long.
- Additional resonant lengths are found every one-half wavelength interval.
- Open pipes vibrate twice as high a closed pipe for same length, with same resonant intervals
Hearing Resonance
- Musical instruments use resonance to increase the loudness of particular notes
Resonance on Strings
- Vibrating strings exhibit characteristics similar to standing waves.
- The first mode of vibration has an antinode in the middle.
Electric Potential Difference
- Electric potential difference (or voltage) is the change in electric potential energy (PE) per unit charge.
- Measured by volts (V)
Electric Field Intensity
- The electric field strength is the force per unit charge measured in N/C
Coulomb's Law
- The electrostatic force between two charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.
- F = kq₁q₂ / d²
Charges on Spheres
- Spheres with equal mass and equal positive charges will be balanced
Capacitance
- Capacitance (C) is the ratio of the magnitude of the net charge on one plate of a capacitor (q), to the potential difference across the plates (ΔV).
- Measured in Farads (F)
EOT Exam Information
- Exam questions are likely to be in a different order than presented in the solution document
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Description
Test your knowledge on electric fields with this quiz! Answer questions about SI units, electric field strength calculations, and the application of Pythagoras' theorem in electric charge scenarios. Perfect for students in physics classes.
