vocab
velocity
speed in a particular direction
Is a force required to change the velocity of an object
Yes
In what ways can an object's motion change?
It can start moving, stop moving, speed up, slow down, or change direction
How are force and velocity different?
Force is the push or pull exerted in a direction and velocity is the speed of an object's motion when a force is exerted on it
force
a push or pull that can change the motion of an object
A weaker force can cause a greater change in velocity
False
To get an object to start moving, you have to ...
exert a force in any direction
If you pull back a springer to the 2nd mark and another one to the 3rd mark, which one would have a stronger force?
The one pulled back to the 3rd mark
exert
to apply a force
How can a cause-and-effect relationship help you?
It can help you infer what led to a particular result
If an object were to stop moving, it would be because ...
a force was exerted in the same strength in the opposite direction of the motion of the object
What causes objects to slow down over time?
Friction
friction
a force between an object and the surface it is moving over
How an object changes velocity depends on the direction of the force exerted on that object
True
What is a cause?
An event or process that leads to a result or change
If a stronger force than the initial velocity is exerted on an object that is in motion, what will happen?
infer
to reach a conclusion using evidence and reasoning
A stronger force can cause a greater change in velocity
True
What is an effect
A result or change that happens because of an event or process
In what direction do the thrusters exert force in both claims?
They exert force in the opposite direction to the pod's motion