Power Up- Lesson 3- Magnetism & Electromagnets Quiz

A _______ is an object that generates a magnetic field.

• Thermometer
• Magnet
• Atmosphere

A _____ is an invisible area of magnetic force surrounding a magnet.

• Magnetic Field
• Electric Field
• Aurora

The ends of a magnet, where the magnetic field lines extend from, are called __________.

• Regions
• Hemispheres
• Poles

Each magnet has a _____ and _____ pole.

• North and South
• East and West
• Front and Back

Like poles ________ while opposite poles _______.

• attract, repel
• repel, attract
• attract, attract
• repel, repel

The amount of electricity that flows through a circuit is called __________.

• joules
• resistance
• current

The image below shows an electromagnet that will not work, even though the circuit is complete. What is the likely cause of the problem?

• THE WIRE IS NOT INSULATED
• THE CORE IS NOT IRON OR STEEL
• THE WIRE IS NOT WRAPPED ENOUGH
• THE WASHERS ARE NOT MAGNETIC

The image below shows an electromagnet that will not work, even though the circuit is complete. What is the likely cause of the problem?

• THE WIRE IS NOT INSULATED
• THE CORE IS NOT IRON OR STEEL
• THE WIRE IS NOT WRAPPED ENOUGH
• THE WASHERS ARE NOT MAGNETIC

The image below shows an electromagnet that will not work, even though the circuit is complete. What is the likely cause of the problem?

• THE WIRE IS NOT INSULATED
• THE CORE IS NOT IRON OR STEEL
• THE WIRE IS NOT WRAPPED ENOUGH
• THE WASHERS ARE NOT MAGNETIC

Materials that always have their own magnetic field are called __________

• Temporary Magnets
• Permanent Magnets
• Obsolete Magnets