Day 9 Potential Energy Lecture

What is potential energy commonly referred to as?

• Stored energy

• Kinetic energy

• Mechanical energy

• Thermal energy

What determines gravitational potential energy?

• Object's mass only

• Object's temperature

• Object's position in a gravitational field

• Object's velocity

How does the height of an object affect its gravitational potential energy?

• Increases as height increases

• Increases as height decreases

• It has no effect

• Only affects objects in motion

What is an example of elastic potential energy?

• A car moving downhill

• A compressed spring

• Water flowing in a river

• A book resting on a table

What happens to the potential energy of an object as it is stretched or compressed more?

• It increases

• It decreases

• It first increases, then decreases

• It remains constant

What is the significance of an object's shape in determining its potential energy?

• Has no significance

• Influences its elastic potential energy

• Affects its kinetic energy only

• Determines its color

What does the 'm' in the potential energy formula PE = mgh represent?

• Momentum

• Mass

• Machine

• Movement

What unit is energy typically measured in?

• Meters per second squared

• Watts

• Joules

• Newtons

What factor remains constant when calculating gravitational potential energy on Earth?

• Mass

• Shape

• Height

• Gravity

Why is practice important in understanding potential and kinetic energy calculations?

• To memorize formulas

• To improve calculation speed

• To deepen understanding

• To pass exams only