LO 4-2 kinetic energy

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

As mass increases, KE ...

• increases
• decreases
• stays the same

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

The SI unit in which kinetic energy is measured is 

• Newton
• Kilogram
• Joules
• Metres per second

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.MS-PS3-1

NGSS.MS-PS3-4

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)

A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?

• 2 m/s
• 4 m/s
• 200 m/s
• 10 m/s

Tags

NGSS.MS-PS3-1

When the speed of a car doubles, the kinetic energy

• doubles

• stays the same

• triples

• quadruples