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?

• 
• 
• 
• 

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

• protons

• neutrons

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

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

• 
• 
• 
• 

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

• strong force

• gravitational 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.