Non Contact Forces

What are the charged parts of an atom?

• proton and neutron

• proton and electron

• neutron and electron

Tags

NGSS.MS-PS1-1

During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?

• conduction
• friction
• induction

two objects with the same charge will move away from each other

• attraction

• repel (repulsion)

• conduct

Tags

NGSS.MS-PS2-3

two objects with opposite charges will move towards each other

• attract

• repel (repulsion)

• conduct

Tags

NGSS.MS-PS2-5

the negatively charged particle in an atom. Moves freely. Can be released, shared, or “stolen” from an atom.

• proton
• neutron
• electron

Tags

NGSS.MS-PS1-1

Which of the following is true about a bar magnet?

• Its magnetic field is strongest near its center.

• It is surrounded by a magnetic field.

• The north pole is stronger than the south pole.

Tags

NGSS.MS-PS2-3

A simple electromagnet can be made with which of the following?

• an electric current

• a turbine and nail

• a nail, a wire, and a battery

How can the strength of an electromagnet be increased?

• by rubbing it with a stronger magnet

• by increasing the coils of wire around the iron

• by increasing the length of the wire from the battery

Tags

NGSS.MS-PS2-3

Why does a compass needle point north?

• The compass is a bar magnet

• Because north is up

• It lines up with the Earth's magnetic field

Tags

NGSS.MS-PS2-3

What is this symbol for?

• light bulb

• switch

• battery