Physics Review

What is potential energy?

• The energy an object has due to its atomic structure.

• The energy an object has due to its chemical composition.

• The energy an object has due to its motion.

• The energy an object has due to its position or condition.

Tags

NGSS.HS-PS2-4

What is kinetic energy?

• The energy an object has due to its position or condition

• The energy an object has due to its motion

• The energy an object has due to its chemical composition

• The energy an object has due to its atomic structure

Tags

NGSS.HS-PS3-2

When does an object have no kinetic energy?

• When it's at rest.

• When it's moving very slowly.

• When the only force that's acting on it is gravity.

• When it has no electrical charge.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

• PE = mgh

• PE = mg / h

• PE = mg + h

• PE = gh

What is the value of the Earth's acceleration due to gravity (g)?

• 9.8 m/s²

• 100 m/s²

• 25 m/s²

• 3.14 m/s²

Tags

NGSS.HS-PS2-4

What is the kinetic energy (KE) of a 0.06kg tennis ball traveling at a speed of 150m/s?

A 5.6kg bowling ball rolls down the lane at 3.0m/s. What is the bowling ball's kinetic energy (KE)?

Tags

NGSS.HS-PS3-1

A weightlifter raises a 180kg barbell to a height of 1.95m. How much gravitational potential energy (GPE) does the barbell have?

A spring has a spring constant of 330 N/m.  How far is the spring compressed if 150 N of force are used?

• 2.2 m
• 0.0014 m
• 5.0 m
• 0.45 m

The spring constant of an object tells you?

• What type of spring you are dealing with

• How long the spring will stretch or compress

• It gives you a value on how easy or hard it is to change the objects length.

• A spring constant gives you a number which tells you what material the spring is made of.