Vocabulary
Supporting Concepts
Force Strength
Mass and Velocity
Collisions
100
Define Force
a push or a pull that can change the motion of an object
100
At dinner, Hans passed the salt shaker to his sister Jessica by sliding it across the wooden table. The salt shaker gradually slowed down and stopped after moving 12 centimeters.
Why did the salt shaker stop moving?
The table exerts a force that is opposite to the salt shaker's motion.
What is this force called? (+100)
100
Which toy boat(s) experienced the strongest force when it was bumped? How do you know? 
All three toy boats experienced the same strength force because they changed speed by the same amount.
100
Which boat(s) experienced the strongest force when hit? How do you know? 
The gray and pink boats experienced the strongest force because they are both more massive than the orange boat, and they all changed speed by the same amount.
100
In which crash did the skateboard experience a stronger force? Why?
Crash 2; the force on the cart was stronger in this crash, so the force on the skateboard was also stronger.
200
Define Exert
to apply a force
200
Which direction would I have to exert the force to slow down object c?
in the opposite direction, to the left
200
Which golf ball(s) experienced the strongest force when hit? How do you know?
The green golf ball because it changed speed the most.
200
Which chair(s) experienced the strongest force when hit? How do you know?
The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.
200
In which crash did the tennis ball experience a stronger force? How do you know?
Crash 1; the force on the soccer ball was stronger in this crash, so the force on the tennis ball was also stronger.
300
Define Speed
how fast an object is moving
300
Object B is moving at 7 cm/s to the right. What do I have to do to change this objects velocity to 0 cm/s?
-exert an equal force, in the opposite different (to the left)
300
Which skier(s) experienced the strongest force when bumped? How do you know?
All three skiers experienced the same strength force because they changed speed by the same amount.
300
Which puck(s) experienced the strongest force when hit? How do you know?
The black and purple hockey pucks; they have more mass than the green puck, but changed speed by the same amount.
300
In which crash did the asteroid experience a stronger force? How do you know?
Crash 2; the force on the planet was stronger in this crash, so the force on the asteroid was also stronger.
400
Define Velocity
speed in a particular direction
400
Object B is moving at an initial velocity of 4 cm/s. A force strength of 20 is exerted to the left. Draw and explain what happens to the velocity of Object B after the force is exerted.
slows down
V = 2 cm/s (to the right)
400
Which skateboard(s) experienced the strongest force when bumped? How do you know? 
The green skateboard experienced the strongest force because it changed speed the most.
400
Which soccer ball(s) experienced the strongest force? How do you know?
The blue and orange soccer balls; they have more mass than the black soccer ball, but changed speed by the same amount
400
In which crash did the rubber duck experience a stronger force? How do you know?
Crash 2; the force on the orange boat is stronger, so the force on the rubber duck is also stronger.
500
Define Collision
the moment when two objects hit each other
500
Explain what is being model. Draw the after picture (+$200)
-object B is moving to the right at a medium speed
-a large force strength is applied to the left (in the opposite direction of the object
-this will cause the object's velocity to change (specifically directions and slow down
-the object is now moving to the left, at a slow speed
500
Which curling stone(s) experienced the strongest force when hit? How do you know? 
The blue curling stone experienced the strongest force because it changed speed the most.
500
Which skateboard(s) experienced the strongest force from Kristina’s push? How do you know?
The brown and pink skateboards experienced the strongest force because they are both more massive than the green skateboard and they changed speed by the same amount.
500
In which crash did the cone experience a stronger force? How do you know?
Crash 1; the force on the black hockey puck was stronger in this crash, so the force on the cone was also stronger.