Investigation 1
a push or pull
Define magnetic field
an area of magnetic influence around a magnet
Define conductor
a material capable of transmitting energy, particularly in forms of heat and electricity
Define solar cell
a silicon structure that converts sunlight into electrical energy and is used as a power source
What is todays date's significance?
Friday the 13th
A student was pushing a cart against the wall with 70 N force. The cart was not moving, why?
The wall was applying a force of 70 N back causing the net force to be zero
I had two donut magnets and a piece of cardboard. Would the two magnets be able to attract through the cardboard? If so, what is holding them together?
yes, magnetic fields
If there were two permanent what way would the poles have to be to make them repel?
south to south or north to north
A generator turns what energy into what other energy?
kinetic energy to electrical energy to potential
There is something that is causing mad panic in the world, what is it called?
COVID 19 or Coronavirus
If an object was sliding around on frictionless surface, how would you get it to stop?
Apply a force in the opposite direction of the way the object is going
Give two examples of potential energy and two examples of kinetic energy
potential - paper clip sitting on a desk, soccer ball sitting still on the grass
kinetic - child running, motor shaft rotating, walking around the classroom
How can you make an electromagnet stronger? (Give two examples)
mores wraps/coils, more batteries, thicker wire
You were given a solar panel, lightbulb, and some wiring. Is it possible for you to get the lightbulbs to light up? If so, explain the transfer or energy through the process.
Sunlight energy to the solar panel through the wiring to the lightbulbs making them light up
How many chairs are there in the room?
33
How do multiple forces affect motion?
Stronger forces move mass in the direction they are going. Equal forces pushing in opposite directions will make the mass stay still
What is the difference between a temporary magnet and a permanent magnet? (Give an example of each one)
temporary - piece of iron turned into a magnet (paper clip, nail, screw)
permanent - will always attract to iron (donut magnet, bar magnet)
Why are insulators important?
What are the five parts of the motor we used and were able to see as we dissected it?
shaft, permanent magnets, coil, commutator, brush
Are there more snails or fish in the aquarium?
Snails
What is the relationship between surfaces and force needed?
the smoother the surface the less friction there is and the less force is needed
Think back to the activity with the paper clip chain and the permanent magnet. What was causing the paper clips to stay together? If you were given a donut magnet, nail, paper clip and a screw could you make a chain with them all connected? Explain why or why not?
Yes they would because the nail, paper clip, and screw are all made of iron and can be turned into a temporary magnet by using the donut magnet
That way you are able to understand what variable causes change in the experiment and what does not
What is the difference between renewable and nonrenewable resources? And give one example of each one
renewable can be reused time after time (solar, wind, hydroelectric, geothermal)
nonrenewable is only used once and cannot be reused (fossil fuels, coal, oil, natural gas)
What is the name of the Unit we are studying/wrapping up?
Electromagnetic Force