Final Review Day 1

What color is it

• red
• green
• blue
• purple

Defintion: Net force required to maintain an object's centripetal acceleration 

• Centripetal force.
• Centripetal acceleration
• Centripetal velocity

Find the centripetal acceleration of a bob on the end of a string that is 3 m long and is moving at 6 m/s?

• 12 m/s^2 
• 2 m/s^2 
• 18 m/s^2 
• 4 m/s^2 

Tags

NGSS.HS-PS2-1

What is the centripetal force of a 5 kg mass moving at 2 m/s in a 10 m radius circle?

• 2 N
• 4 N
• 1 N
• 10 N 

Tags

NGSS.HS-PS2-1

Assume something is traveling in a circular orbit at a constant speed. Is the velocity staying constant?

• No because the direction is constantly changing
• Yes because velocity is speed
• Yes because the direction is the same 

Assume something is traveling in a circular orbit around the earth at a constant speed. The acceleration is...

• directed inward to the middle of the circle
• directed outward 

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-1

Matching: This scientist meticulously recorded planetary data for years in his observatory. 

• Brahe
• Kepler
• Einstein
• Galileo

Matching: This scientist was a student of Brahe who took the data and developed the 3 planetary laws of motion.

• Brahe
• Kepler
• Einstein 
• Galileo

Tags

NGSS.HS-ESS1-4

Matching: This scientist proved that mass curves space. 

• Brahe
• Kepler
• Einstein
• Galileo

Matching: This scientist proved that all objects fall at the same rate when neglecting air resistance.  

• Brahe
• Kepler
• Einstein
• Galileo