Page 10 - Science Course 2 (Book 2)

Force, Gravity, and Friction Mo8-L1a: How Does Gravity Affect

Lesson 1 Forces?

non-contact force
In this topic, you will learn the following a force that one object applies to another object
lessons: without touching it.
Mo.8–L1a: How Does Gravity Affect Forces?
Mo.8–L1b: How Does Friction Affect Forces?

Mo8-L1a How Does Gravity Affect Forces?

KEY CONCEPTS: gravity
1. What are some contact forces and some
non-contact forces? an attractive force that exists between all objects
2. What is the law of universal gravitation? that have mass.

Vocabulary A-Z

Let us learn some vocabulary

force
a push or a pull on an object.

mass
the amount of matter in an object.
contact force
a push or a pull on one object by another object that
is touching it.

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