Electromagnetic Forces and Fields (21 DOL)

What is the primary purpose of building and testing a DC motor in this context?

• To demonstrate examples of electromagnetic forces and fields

• To generate electricity

• To create a perpetual motion machine

• To test the strength of materials

Which of the following is an example of an electromagnetic force in everyday life?

• Friction

• A motor

• Sound waves

• Gravity

What is a common device that uses both electric and magnetic fields?

• A light bulb

• A generator

• A thermometer

• A clock

Which of these devices is used to change the voltage of an electric current?

• A battery

• A transformer

• A resistor

• A motor

What is the role of magnetism in a DC motor?

• To store energy

• To cool the motor

• To provide lubrication

• To create motion through electromagnetic forces

Charged particles exibit what kind of force?

• contact force

• electromagnetic force

• gravitational force

• frictional force

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Which of these forces works only by combining electric and magnetic forces?

• Magnetic

• Electric

• Electromagnetism

What type of particles does the electromagnetic force act on?

• Only neutral particles

• Only charged particles

• Only light particles

• Only heavy particles

Choose ALL that apply:

Which of the following would cause an increase in the electric or magnetic force?

• • Increase the amount of charge on each object

• • Decrease the distance between the objects

• • Decrease the charge on one of the objects

• • Increase the distance between the objects

• • Increase the mass of the objects

Tags

NGSS.HS-PS2-4

Rollercoaster using electricity to make a charge to push the roller cart forward

• Rollercoaster uses Applied Force

• Rollercoaster uses Gravitational Force

• Rollercoaster uses Tensional Force

• Rollercoaster uses Electromagnetic Force