What is a force?
a push or a pull that can change the motion of an object
If 3 objects that are the same mass, are pushed with the same force, what can you say about their velocities?
All would have the same velocity
In which direction does friction act?
Friction acts in the opposite direction of motion
What is velocity?
Speed in a particular direction
The following objects are pushed with the same force. Which object will go the farthest?
2 kg box
Which puck is traveling at the highest velocity?
Puck D
What is exert?
to apply a force
The chairs in the image above all have the same mass. Did the chairs experience the same or different forces?
The same force because they have the same mass and the same change in speed
A 0.5kg) B (1kg) C (2kg) D (4kg) Which puck will travel at the highest velocity?
Puck A
What is mass?
the amount of matter in an object
Which boat in the image above experienced the stronger force?
The pink boat because though they both sped up by 3 m/s, the pink boat has more mass and therefore required more force.
Which puck will not hit another puck?
Puck C
What is friction?
Describe the characteristics of a object that has stopped moving.
Net force of 0 (opposing force and motion of object cancel each other out)
How do you calculate velocity?
V = distance of the object divided by time (v = d/t)