Can we change the direction as light travels? When light travels through any material, air, glass, water, etc., it encounters interference and changes direction. This is only a directional change and will continue in this new path, but still as a straight line, or ray. The law that deals with this change in direction is […]
What is potential difference and current?
What is potential difference and current? **Current vs potential difference: **The current is a flow of charge. Current is measured through a component. Potential difference is the energy used between two points in a circuit, therefore it is measured between two points either side of a component. How do you calculate current and potential difference? […]
Are old Brownie cameras worth anything?
Are old Brownie cameras worth anything? Brownie cameras take different film sizes, and some are still usable today. Early models can be very valuable if they are in good condition. Can you still get film for a Brownie camera? In 1995, the 620 film that the Hawkeye and other Kodak Brownie cameras were designed to […]
What happens if you have too much acetylcholine?
What happens if you have too much acetylcholine? Excessive accumulation of acetylcholine (ACh) at the neuromuscular junctions and synapses causes symptoms of both muscarinic and nicotinic toxicity. These include cramps, increased salivation, lacrimation, muscular weakness, paralysis, muscular fasciculation, diarrhea, and blurry vision. What gets rid of acetylcholine? One important neurotransmitter, acetylcholine, has a specialized enzyme […]
How high does the ladder reach on the building?
Why is it easier to transfer liquid from one container to another?
Why is it easier to transfer liquid from one container to another? Answer: The forces between liquid particles are weaker than the forces between solid particles. This means that liquid particles are further apart and can move about more easily. Since the particles can move, the liquid can flow and take the shape of its […]
Is corrosiveness chemical or physical?
Is corrosiveness chemical or physical? Flammability and corrosion/oxidation resistance are examples of chemical properties. What are the 4 chemical properties? The change of one type of matter into another type (or the inability to change) is a chemical property. Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. What […]
Can you overcharge a 12-volt battery?
Can you overcharge a 12-volt battery? Overcharging While you certainly don’t want to keep your battery in an undercharged state, overcharging is just as bad. Continuous charging can: cause corrosion of the positive battery plates. even allow for excessive temperatures causing damage inside the battery. Does putting aspirin in a battery work? Put two tablets […]
Does melting release energy?
Does melting release energy? Note that melting and vaporization are endothermic processes in that they absorb or require energy, while freezing and condensation are exothermic process as they release energy. What are all the changes of state? Changes of state are physical changes in matter. They are reversible changes that do not involve changes in […]