A Journey Through the Standard Model

Gravity is a force that is...

• attractive or repulsive and acts on mass

• attractive or repulsive and acts on charge

• attractive only and acts on mass

• attractive only and acts on charge

What are the units of the Gravitational Constant?

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The electromagnetic force is...

• attractive or repulsive and acts on mass

• attractive or repulsive and acts on charge

• attractive oonly and acts on mass

• attractive only and acts on charge

Organize these options into the right categories

Groups:

(a) in the nucleus

,

(b) orbiting around the nucleus /

• electrons

• neutrons

• protons

Look up Coulomb's constant (AKA the electrostatic constant) in your reference tables and record it below WITH ITS UNITS

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How may times larger is the electrostatic constant (k) compared to the universal gravitational constant (G)? Use your reference tables to help you.

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all electromagnetic waves have the same ____________ in a vacuum.

The energy of a light wave (photon) depends on its...

• amplitude

• mass

• frequency

• speed

Rank the three fundemental forces mentioned so from from strongest to weakest:

Groups:

(a) strongest

,

(b) middle

,

(c) weakest

• electomagnetic force

• gravitational force

• strong force

On page 3 of the reference tables there is a table named Particle of the Standard Model. According to that table, electrons are categorized as ________ with a charge of -1e.