Solving for Kinetic Energy

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Tags

NGSS.HS-PS3-2

As mass increases, KE ...

• increases
• decreases
• stays the same

Which has a greater impact on KE?

• mass
• velocity

The SI unit in which kinetic energy is measured is 

• Newton
• Kilogram
• Joules
• Metres per second

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Rearrange the equation for kinetic energy to make mass the subject of the equation.

• m = KE/2v²
• m = 2KE/v²
• m = v²/2KE
• m = 2v²/KE

Rearrange the equation for kinetic energy to make velocity squared the subject of the equation.

• v² = KE/2m
• v² = 2m/KE
• v² = 1/2 KE m
• v² = 2KE/m

Rearrange the equation for kinetic energy to make velocity the subject of the equation.

• v = √(2KE/m)
• v² = 2KE/m
• v = √(m/2KE)
• v = √(KE/2m)

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

• 18 J
• 36 J
• 12 J
• 6 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-3

How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?

• 27 J
• 18 J
• 9 J
• 2 J