Round 1: Tricky Taboo
• time
• force
• collision
• path
• mass
Round 2: Tricky Taboo
• motion
• distance
• speed
• gravity
• friction
Push, Pull, or Both?
Fill in the Blank
1.
2.
3.
4.
5.
6.
7.
8.
force is anything that pushes, pulls, squeezes,
A ______
stretches, or twists.
path
Objects can move in many directions, or ______.
The amount of friction
_______ depends on the texture of the
surface and how big the force is.
When two or more objects are dropped at the same time,
mass they have, they will land at
no matter how much ______
time
the same ______.
The weight and speed of the objects colliding determines
the force of the __________.
collision
Speed is the measure of how fast or slow an object is
_________
moving.
variable when testing a
You should only change one ________
hypothesis.
graph
You can use a line __________
to show motion.
Describe the Motion
• I can describe an object’s motion by:
•
1.
•
2.
•
3.
•
4.
How long it takes (time)
How far it travels (distance)
How fast the object goes (speed)
What path it follow (path/direction)
• Describe the motion in the picture.
•
1.
•
2.
•
3.
•
4.
Describe the Force
1. What forces are acting on the swing?
1. The pull of the chains
2. The pull of earth’s gravity
3. Both the pull of the chains and the pull of earth’s gravity
4. Neither the pull of the chains nor the pull of earth’s gravity
Video Review
What causes the bike to accelerate?
•
•
Why did the cyclist speed stay the same if
she kept pedaling?
•
•
•
Pushes with forward force on pedals
counter forces pushing back: friction, force of air
(air resistance)
What is the flag show us?
• air resistance
• What helped the cyclist increase her speed?
• She pushed harder on the pedals
• How did the cyclist stop?
• She stopped pushing on the pedals