1. Science Chapter 15 Lesson 1
Gravitational effects

2. Lesson 1 Vocabulary force gravity
A push or pull that causes an object to move, stop, or change direction
The use of force to move an object through a distance
The pulling force between all objects; the force that causes objects to fall toward Earth
force
work
gravity

3. Lesson 1 Vocabulary weight Spring scale motion
A measure of the downward force of gravity on an object
A tool used to measure
weight of an object according to the pull of gravity
The change in an object’s position
The measure of speed and direction
weight
Spring scale
motion
velocity

4. Lesson 1 Vocabulary speed inertia
The measure of the distance an object moves in a set amount of time; like 65 miles per hour
A change in velocity (speed or direction
The tendency of an object to resist a change in motion
The force from 2 or more objects rubbing against each other; 2 hands rubbing; feet rubbing on carpet
speed
acceleration
inertia
friction

5. Lesson 1 Vocabulary newton The unit to measure force
Force exerted by a body moving through air because of friction; like sky diving
A tool that uses weights to determine the mass of an object
newton
Air resistance
balance