Kinetic Energy Equation

A 11kg baby crawls across the yard at 2 m/s. What is his kinetic energy?

• KE = 11 x 1/2 + 2²

• KE = 0.5 x 11 x 2²

• KE = 0.5 x 2 x 11²

• KE = 1/2 + 0.5 + 11²

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

If a 90 kg man and his bicycle are traveling down a path at 25 km/h, what is his total kinetic energy?

• KE = 90 + 0.5 + 25²

• KE = 0.5 + 90² x 25

• KE = 0.5 x 90 x 25²

• KE = 0.5 x 25 x 90²

Tags

NGSS.MS-PS3-1

A 11kg baby crawls across the yard at 2 m/s. What is her kinetic energy?

• 44 J

• 11 J

• 16 J

• 22 J

Tags

NGSS.MS-PS3-1

The table lists the mass and speed of each of four objects. Which two objects have the same kinetic energy?

• A and D

• B and D

• A and C

• B and C

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

In the diagram below, a 5 kg object is moving with a speed of 10 m/s, and a 10 kg object is moving with a speed of 5 m/s. Which object in the diagram has more kinetic energy?

• Both of the objects have the same amount of kinetic energy.

• The 5 kg object has more kinetic energy.

• The 10 kg object has more kinetic energy.

• Neither object has any kinetic energy.

Tags

NGSS.HS-PS3-2

If a car is doubles it's velocity from 97 kph to 194 kph what happens to his kinetic energy?

• The kinetic energy would double (x2)

• The kinetic energy would divide in half

• The kinetic energy would decrease

• The kinetic energy would quadruple (x4)

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs?

• 8.5 J

• 45 J

• 7.5 J

• 22.5 J

Tags

NGSS.MS-PS3-1

A 5 Kg body is having a Kinetic energy of 250 J. What is the velocity of the body?

• 10 m/s

• 15 m/s

• 20 m/s

• 40 m/s

Tags

NGSS.HS-PS3-2

What is the mass of a ball that has a kinetic energy of 115 J and is traveling at 9 m/s?

• 1035 kg

• 23.5 kg

• 12.8 kg

• 2.84 kg

This is the equation for kinetic energy. Based on the equation, we know that the relationship between kinetic energy (KE) and mass (m) is _______________.

• linear

• non-linear