Activity 3.1.1. Warm-up.
Start by writing a short (2-3 sentence) description of how you use the term force in your everyday life. You might want to include an example.
Section 3.1 What are Forces?
Video Lesson 3.1.1. Forces.
Subsubsection Key Ideas
Definition 3.1.2. Force.
A force is an interaction between two objects (or systems) that causes those objects to experience a push or pull. Every force is a vector (with magnitude and direction) that has a type and involves two distinct objects acting on each other.
Activity 3.1.2. Explore forces.
(a)
Identify and describe the different types of forces you believe are acting on Dr. Paws in the video above as she chases the ball.
(b)
Write a short (2-3 sentence) description of how we use the term force in physics. Highlight any differences between your physics description and your personal description from the first part.
(c)
Brainstorm a list of possible different types of forces you can imagine acting on something.
(d)
The SI unit for a force is the newton (N), while the Imperial unit for force is the pound (lb). Use a search to find the number of newtons in one pound. If an amateur soccer player is able to kick a soccer ball with a force of around 500-700 pounds, how many newtons are they able to exert?
