- In an electric motor. current is reversed every complete turn
- The strength of a magnetic field is measured in
- When two parallel wires carry currents in opposite directions, their magnetic fields attract each other.
- The direction of Earth's magnetic field is toward the
- The speed of an electric motor can be controlled by varying the current flow.
- Increasing the number of loops in an electromagnet causes the strength of the magnetic field to
- the magnetic force on a current-carrying wire in a magnetic field is ---- the direction of the current
- an electron in an atom can be described as a
- Welche Spannung verwendet man bei der Langstreckenübertragung von elektrischer Energie. Erkläre, warum ausgerechnet diese Art der Spannung dazu verwendet wird.
- If you rise 3 meters above the zero line when you are swinging, what will be your velocity when you get to the bottom of your path?
- If a satellite has a mass of 2015 Kg and is a total distance of 7.0X10^6m above the center of the earth, what is the FORCE of gravity activing on it? Remember that earth has a mass of 5.98x10^24Kg.
- What is the integral of a velocity vs. time graph?
- If you have a mass of 50Kg and you climb to the top of a 50 meter roller coaster, how much gravitational potential energy is stored in you?PE=mgh
- If you and your bicycle have a mass of 75Kg and you are travelling at 10m/s, how much kinetic energy (KE) do you have?
- How many children die from contaminated water each year?
- What are 4 ways people can drink clean and safe water?
- Who discovered what it means to orbit?
- If you place a 10NF(Newton Force) on a 10kg Object, what would the Acceleration be?
- True of False: Galileo proved that all things fall with the same rate of acceleration when he droppeditems of different mass off of the Leaning Tower of Pisa
- If you looked at a position vs. time graph of someone going a constant velocity, what would that look like?