Topic Progress: ## Lesson – Soda Pop ### Overview

Title: Soda Pop!
Duration: Two – 45 Minute Lessons

### Standards

Science – SC.4.P.10.2
Investigate and describe that energy has the ability to cause motion or create change.

### Hypothesis

Can kinetic energy cause motion and/or create change?

### Vocabulary

Energy • ApplyHeat • Motion • Force • Net ForceUnbalanced • Velocity Kinetic • Potential • MatterFrictionSpeedIncrease •  Acceleration • Deceleration • Decrease • Push and Pull

### Essential Question

How does kinetic energy cause motion and/or create change?

### Background Information

Energy is all around us! Energy helps us explain how and why things work the way they do. Although, we are notable to hold or touch energy, we can see it as light, feel it as heat, hear it as sound, and produce it as we do work. By applying force to an object, you can change its form of energy

Kinetic energy is the energy of motion. All moving objects have kinetic energy. When an object is in motion, it changes as its positions move in a direction: up, down,forward, or backward. That energy is used to do work, o

A force is defined as a push or pull. When there is an unbalanced force there is a force that changes an object’s motion or causes it to accelerate.

For example, when a person colors in a drawing, he or she exerts a force on the crayon; because the person is pushing or pulling the crayon across the paper. Another example is when two equal forces move in the same direction. So If two people, at the same time, are pushing a table across the floor in the same direction, the two forces are added together. Adding these two forces together is called the net force.

A net force is required to cause changes in motion (speed or direction). If an object is at rest, a net force is required to put it into motion. If an object is in motion, a net force is required to slow it down/bring it to rest. This change in motion is called acceleration. When an object increases its speed/direction (velocity) it is called acceleration, when an object decreases its speed/direction (velocity) it is called deceleration.

### Questions

• What is energy?
• What is potential energy?
• What is kinetic energy?
• How do objects move and change position?
• What is a push/pull?
• What are the ways objects can move?
• How can we use the energy of motion?
• What are the other forces that can make an object move?

### Purpose

This experiment is an investigation of net force. During this investigation you will watch how an invisible force is able to move the empty soda can from one mug to another.The harder you blow, the faster the air pressure/force between the surfaces increases. HINT! Remember that kinetic energy quadruples in force when being used. This force pushes the empty can up and out, allowing it to pop to the other mug.

### Materials

• Ruler
• Empty Soda Can
• 2 Coffee Mugs

### Procedure

1. Rinse out an empty can of soda.
2. Let dry completely.
3. Measure out 3 inches between the two mugs.
4. Place one mug in front of the other.
5. Place the empty soda can in one of the mugs.
6. Adjust the distances between the mugs if necessary.
7. Take a deep breath and blow air between the soda can and the mug to make it pop over into the empty mug.