Final answer:
True or false questions are addressed with explanations pertinent to vectors, pulse waves, electric field lines, electromagnetic induction, wave-particle duality, and position vs time graphs, all within the realm of high school physics.
Step-by-step explanation:
Addressing the series of true or false questions provided:
- Vector Components: A vector can indeed form the shape of a right-angle triangle with its x and y components. This is because any vector can be decomposed into orthogonal components, and these components can serve as the sides of a right-angle triangle whose hypotenuse is the original vector.
- Pulse Wave: A pebble dropped in water creates a series of circular waves spreading out from the point of impact, which is not an example of a pulse wave. Pulse waves are typically a single disturbance moving through a medium, whereas this scenario depicts a continuous wave.
- Electric-field Lines: The electric-field lines from a positive point charge do indeed spread out radially and point outward, illustrating the direction that a positive test charge would move in the presence of the field.
- Electromagnetic Induction: Dropping a bar magnet through a copper tube induces an electric current in the tube via electromagnetic induction. As the magnet falls, it creates a changing magnetic field inside the tube, which induces the current.
- Wave-Particle Duality: Wave-particle duality is a concept in quantum mechanics that applies to microscopic particles, such as electrons and photons. It does not apply to objects on the macroscopic scale.
- Position vs Time Graph: The position vs time graph of an object that is speeding up is not a straight line. Instead, it would typically show a curve, indicating acceleration.