Multiple Choice
Which of the following best defines ?
Table of contents
- 0. Math Review31m
- 1. Intro to Physics Units1h 29m
- 2. 1D Motion / Kinematics4h 42m
- Vectors, Scalars, & Displacement13m
- Average Velocity32m
- Intro to Acceleration7m
- Position-Time Graphs & Velocity26m
- Conceptual Problems with Position-Time Graphs22m
- Velocity-Time Graphs & Acceleration5m
- Calculating Displacement from Velocity-Time Graphs15m
- Conceptual Problems with Velocity-Time Graphs10m
- Calculating Change in Velocity from Acceleration-Time Graphs10m
- Graphing Position, Velocity, and Acceleration Graphs11m
- Velocity Functions with Calculus28m
- Acceleration Functions with Calculus16m
- Kinematics Equations37m
- Vertical Motion and Free Fall19m
- Catch/Overtake Problems23m
- 3. Vectors2h 43m
- Review of Vectors vs. Scalars1m
- Introduction to Vectors7m
- Adding Vectors Graphically22m
- Vector Composition & Decomposition11m
- Adding Vectors by Components13m
- Trig Review24m
- Unit Vectors15m
- Introduction to Dot Product (Scalar Product)12m
- Calculating Dot Product Using Components12m
- Intro to Cross Product (Vector Product)23m
- Calculating Cross Product Using Components17m
- 4. 2D Kinematics1h 42m
- 5. Projectile Motion3h 6m
- 6. Intro to Forces (Dynamics)3h 22m
- 7. Friction, Inclines, Systems2h 44m
- 8. Centripetal Forces & Gravitation7h 26m
- Uniform Circular Motion7m
- Period and Frequency in Uniform Circular Motion20m
- Centripetal Forces15m
- Vertical Centripetal Forces10m
- Flat Curves9m
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- Newton's Law of Gravity30m
- Gravitational Forces in 2D25m
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- Satellite Motion: Intro5m
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- Gravitational Potential Energy21m
- Gravitational Potential Energy for Systems of Masses17m
- Escape Velocity21m
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- Black Holes16m
- Gravitational Force Inside the Earth13m
- Mass Distribution with Calculus45m
- 9. Work & Energy1h 59m
- 10. Conservation of Energy2h 54m
- Intro to Energy Types3m
- Gravitational Potential Energy10m
- Intro to Conservation of Energy32m
- Energy with Non-Conservative Forces20m
- Springs & Elastic Potential Energy19m
- Solving Projectile Motion Using Energy13m
- Motion Along Curved Paths4m
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- Pendulum Problems13m
- Energy in Connected Objects (Systems)24m
- Force & Potential Energy18m
- 11. Momentum & Impulse3h 40m
- Intro to Momentum11m
- Intro to Impulse14m
- Impulse with Variable Forces12m
- Intro to Conservation of Momentum17m
- Push-Away Problems19m
- Types of Collisions4m
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- Adding Mass to a Moving System8m
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- Ballistic Pendulum14m
- Collisions with Springs13m
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- How to Identify the Type of Collision9m
- Intro to Center of Mass15m
- 12. Rotational Kinematics2h 59m
- 13. Rotational Inertia & Energy7h 4m
- More Conservation of Energy Problems54m
- Conservation of Energy in Rolling Motion45m
- Parallel Axis Theorem13m
- Intro to Moment of Inertia28m
- Moment of Inertia via Integration18m
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- Intro to Rotational Kinetic Energy16m
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- Types of Motion & Energy24m
- Conservation of Energy with Rotation35m
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- 14. Torque & Rotational Dynamics2h 5m
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- Opening/Closing Arms on Rotating Stool18m
- Conservation of Angular Momentum46m
- Angular Momentum & Newton's Second Law10m
- Intro to Angular Collisions15m
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- Spinning on String of Variable Length20m
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- 18. Waves & Sound3h 40m
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- Velocity of Transverse Waves21m
- Velocity of Longitudinal Waves11m
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- Wave Interference8m
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- Beats8m
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- Moles and Avogadro's Number14m
- Specific Heat & Temperature Changes12m
- Latent Heat & Phase Changes16m
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- Advanced Calorimetry: Equilibrium Temperature with Phase Changes9m
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- Heat Transfer44m
- 21. Kinetic Theory of Ideal Gases1h 50m
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- 24. Electric Force & Field; Gauss' Law3h 42m
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- 27. Resistors & DC Circuits3h 8m
- 28. Magnetic Fields and Forces2h 23m
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- Magnetic Force Between Parallel Currents12m
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- Magnetic Field Produced by Loops andSolenoids42m
- Toroidal Solenoids aka Toroids12m
- Biot-Savart Law (Calculus)18m
- Ampere's Law (Calculus)17m
- 30. Induction and Inductance3h 38m
- 31. Alternating Current2h 37m
- Alternating Voltages and Currents18m
- RMS Current and Voltage9m
- Phasors20m
- Resistors in AC Circuits9m
- Phasors for Resistors7m
- Capacitors in AC Circuits16m
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- Inductors in AC Circuits13m
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- Impedance in AC Circuits18m
- Series LRC Circuits11m
- Resonance in Series LRC Circuits10m
- Power in AC Circuits5m
- 32. Electromagnetic Waves2h 14m
- 33. Geometric Optics2h 57m
- 34. Wave Optics1h 15m
- 35. Special Relativity2h 10m
- 18. OLD Waves & Sound Coming soon
- 32. OLD Electromagnetic Waves Coming soon
- 33. OLD Geometric Optics Coming soon
9. Work & Energy
Intro to Energy & Kinetic Energy
Multiple Choice
A baseball of mass is thrown with a speed of . What is its kinetic energy?
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Verified step by step guidance1
Identify the given quantities: mass \(m = 0.135\ \text{kg}\) and speed \(v = 40.0\ \text{m/s}\).
Recall the formula for kinetic energy, which is the energy an object has due to its motion:
\(KE = \frac{1}{2} m v^2\)
Substitute the given values into the kinetic energy formula:
\(KE = \frac{1}{2} \times 0.135 \times (40.0)^2\)
Calculate the square of the velocity:
\((40.0)^2 = 1600\)
Multiply the values step-by-step to find the kinetic energy:
\(KE = \frac{1}{2} \times 0.135 \times 1600\)
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