Four Forces

Multiple Choice

Who is the best Science Teacher

• Ms Cruz

• Bill Nye

• Albert Einstein

• Sigma Boy

Please answer the questions and read the slides. Click Next

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4 Fundamental Forces

Multiple Choice

Which are the four fundamental forces

• Push , Pull, Rotate, Fly

• Gravity, Strong, Weak , Electromagnetic

• Pull. Push, Rotate, Levitate

• Gravity ,Strong, Weird, Electric

Gravity

The weakest attractive force between any two objects, which depends on the masses of the objects and the distance between them
o Law of universal gravitation
• Force = G𝑚1𝑚2 𝑑2

Multiple Choice

What kind of force does gravity have

• weird

• super

• strong

• weak

Strong Nuclear Force

o The force that holds together the atomic nucleus
Protons, Electrons and Neutrons

Fill in the Blank

Strong Nuclear Force includes protons, electrons and ________

Weak Nuclear Force

 The weak attraction in the nucleus between protons and neutrons; can cause neutrons to decay in the instance of a high proton to neutron ratio
o Fission • A parent atom that splits into two daughter atoms • Ex: beta decay o A beta particle is emitted from an atomic nucleus. o 𝛽 𝑑𝑒𝑐𝑎𝑦 = 6 14𝐶 → 7 14𝑁 + −1 0 𝑒 (𝑏𝑒𝑡𝑎 𝑝𝑎𝑟𝑡𝑖𝑐𝑙𝑒) o Fusion • Two or more atomic nuclei combine to form a new nuclei. 

"Weak" Nuclear Force can cause nuclear explosions

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Weak Nuclear Force

Multiple Choice

The weak nuclear force can cause

• explosions

• excitement

• entertainment

• endearment

o The force that acts on all charged particles; attractive or repulsive force between a magnet and electric charges

o Electromagnet: an object that behaves like any other magnet when there is an electric field running through it • Possible examples include an electric motor, a generator, and a television tube. 

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Electromagnetic Force

Multiple Choice

The electromagnetic force acts on _____ charged particles

• most

• some

• all

• few

Multiple Choice

Which force is primarily responsible for the attraction between the Earth and the moon?

• Gravity

• Weak Nuclear Force

• Strong Nuclear Force

• Electromagnetic Force

Multiple Choice

Which force is the strongest at very short distances, such as within the nucleus of an atom?

• Gravity

• Strong Nuclear Force

• Weak Nuclear Force

• Electromagnetic Force

Multiple Choice

Which force is responsible for phenomena such as static electricity and magnetism?

• Gravity

• Strong Nuclear Force

• Weak Nuclear Force

• Electromagnetic Force

Multiple Choice

What do you need to turn in at the beginning of class?

• shoe

• phone

• candy

• money