Phys_Unit 2 Review

The four fundamental forces of nature are: 

• Electromagnetism, Gravity, Strong Nuclear, Weak Nuclear
• Gravity, Strong Nuclear, Weak Nuclear, Medium Nuclear
• Normal Force, Force due to gravity, Magnetism, Nuclear 
• Nuclear, Electricity, Gravity, Atomic 

________ can be either a force of attraction or repulsion while ____________ is only a force of attraction.

• Gravity; Electromagnetism 
•  Electromagnetism; Gravity
• Gravity; Strong nuclear force 
• Magnetism; Electricity 

An apple falling from a tree is an example of the force of ____________.

An electron moving in wire is an example of ____________.

• Gravity

• Electromagnetism

• Strong Nuclear

• Weak Nuclear

_____________ is the force that binds protons together in the nucleus of an atom.

• Gravity

• Electromagnetism

• Strong Nuclear

• Weak Nuclear

What is the name of the technique used to identify atoms by the light they absorb or emit?

• Atomic Spectroscopy

• Atomic Anatomy

• Particle Sensing

• Radiotherapy

You can create a plasma by heating up a gas.

• True

• False

You can combine neutrons to form hadrons.

• True

• False

Nuclear fission provides the energy for nuclear weapons

• True

• False

A fission reaction _______ atoms to form lighter atoms, and a fusion reaction _______ to form larger atoms.

• combines lighter; splits heavier

• splits heavier; combines lighter

• splits negative; combines positive

• combines positive; splits negative