Physics Homework Aid
Physics holds significant importance among the natural sciences, elucidating life's wonders and ranking among the most challenging subjects to master.
QuestionAI is a rich and user-friendly physics problem solver for novice physicists, enabling exploration of atomic properties and interactions, alongside molecular trajectories under various forces. Furthermore, you can delve into the mysteries concealed amidst galaxies with fellow physics enthusiasts. Boldly pose your conjectures and queries to the AI, and authoritative answers will readily emerge.
- Student Exploration Fan Cart Physics Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: acceleration ,force, friction, mass, newton , Newton's first law, Newton's second law, Newton's third law, velocity Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Imagine a horse pulling a cart. What would happen to the speed of the cart if several bags of cement were added to the cart? square 2. Suppose several more horses were hitched up to the same cart. How would this affect the speed of the cart?
- 5. An FM radio station broadcasts electromagnetic waves at a frequency of 94.5MHz (equal to 94,500,000Hz These radio waves have a wavelength of 3.17 meters. What is the speed of the waves? square square square square
- A helicopter's speed increases from 25m/sec to 60m/sec in 5 seconds. What is the acceleration of this helicopter? Do not include units with your answer.
- 1) What is meant by relative motion? 2) What is a frame of reference? 3) When you are asked what the motion of an object is relative to a frame of reference, what velocity does an observer in that frame of reference imagine that s/he has? 4) Tim is walking down the aisle of a speeding bus and tosses a coin into the air. Matthew is standing on the sidewalk outside. a) Draw the trajectory of the coin from Tim's frame of reference b) Draw the trajectory of the coin from Matthew's frame of reference. 5) Tara is a pilot that is going to drop a package on an enemy storage depot. With a camera mounted under the plane, she watches the package drop Annie is an observer on the ground who also watches the package drop. Assume air resistance is small. a) Draw the trajectory of the package from Tara's frame of reference. b) Draw the trajectory of the package from Annie's frame of reference. 6) An old-fashioned physics dilemma used to be- if a sailor in the crow's nest (a place way up high in the rigging) of a sailing ship that was moving at constant speed dropped a tool onto the deck of the ship, would it land directly beneath where he dropped it or since the ship was moving, would it land further back? Explain your answer.
- Electrons can be removed from some objects using friction , simply by rubbing one substance against another substance. There are many examples of objects becoming charged by friction, including a rubber comb through hair, and a balloon on a sweater In both these instances the electrons move from the second object to the first, causing the first object to become negatively charged and the second one positively charged. Friction between the tires on a moving car and the road cause the tires to become charged, and wind causes friction between clouds and air which causes clouds to become charged and can result in tremendous bolts of lightning. t t + his t t Morty rubs a balloon on his head and presses it to the wall. When he takes his hand away, the balloon sticks. Explain why this happens, mentioning positive/negative charge and flow of electrons.