Key Vocabulary
motion
Motion is the act of moving. It is in motion.
speed
Speed is how fast something moves.
force
A power that produces a change in a movement. A push or a pull is a force. friction.
gravity
Gravity is a force that pull things to the ground.
pull
Pull is a force that moves things closer to you.
push
Push is a force that moves things away from you.
straight
Straight means no bend.
curved
Curved means not straight and forming a curve.
Visual Summary
Chaning Direction.
| motion | picture |
|---|---|
| swim straight |  |
| curved path |  |
| zigzag |  |
| circle circular motion |  |
Exercise
Match each word with its definition:
- a force that moves things away from you. (push)
- how fast something moves. (speed)
- a force that move things closer to you. (pull)
- a power that produces a change in a movement. (force)
- a force that pulls things to the ground. (gravity)
- the act of moving. (motion)
Up Close
Thy do things fall?
Gravity is a force that pulls an object straight down to the ground. Gravity keeps things from floating off into space.
bungee jumping.
True of False
| Statement | True or False |
|---|---|
| Motion is where something is. | F |
| A push or pull is a force. | T |
| A push is a force that moves things closer to you. | F |
Reading passage/section
If a car, person, animal, or other thing in motion, it is moving. Things move at different speeds. A car moves fast, a person moves slowly. Things move in different ways.
If you take the bus to school, you move quickly from your home to school. A train moves straight, but a train track can be curved. Force makes things move or stop. Force can change the speed of things.
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Reading skill
Main idea and Details
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Comprehension
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source
From American Textbook Reading Science 14 Grade 2 35:52