Energy & Forces Vocab
Collisions & Damage Vocab
Variables & Graphing
Misc.
100
What is Force?
A push or a pull in a particular direction
100
What is a Collision?
When a moving object hits another
100
What is an Independent Variable? What is a Dependent Variable?
I.V. = This is the variable to change each time you test
D.V. = This is the variable to observe the effects caused by a change in the independent variable. The you measure
100
What is a Concussion?
A type of brain injury, caused by a bump or blow hit that causes the head and brain to move rapidly back and forth
200
What is Peak Force?
Maximum Force
200
What does it mean when an object "Deforms"?
An object bends or changes its shape
200
What example of "Line of Best Fit" is correct?
Line B
200
Does the human body have more sensors in our skin for pain or for light touches and light forces applied to our skin?
More pain sensors
300
What is Contact Force?
The force that an object experiences due to contact with another object
300
What does it mean when an object is damaged?
An object has a permanent change to its shape
300
Show how to properly set up the X and Y axis on a graph using this data. Additionally identify which variable (Independent or Dependent) goes on the X-axis and which goes on the Y-axis? Which column from the data table is the I.V. and which is the D.V.?
Independent Variable: X-axis
Dependent Variable: Y-axis
Types of Food = Independent Variable
Number of People's Favorite Food = Dependent Variable
300
A small car weighing 1,500 kg and traveling at 55 mph crashes into a tractor-trailer truck that weighs 15,000 kg and traveling at 35 mph. If the tractor-trailer truck delivered 400,000 N of force onto the small sedan, how much Newtons of force would have been delivered from the sedan back to the tractor-trailer truck?
400,000 N of force
400
What is Kinetic Energy?
Energy of Movement
400
What is an object's "Breaking Point"?
the maximum amount of force or deformation they can withstand, beyond which they will crack or split apart
400
What is a Control Variable? Give 3 Control Variables from the Collisions Lab if we dropped a golf ball onto a computer from different heights
Control Variables:
- Object being dropped was always the golf ball
- The surface the golf ball was dropped on to was always a computer
- Golf ball was always dropped with no added force
400
What is an Axon and what does it do?
Interconnected cells that make up the brain and send signals
The long part of the neuron is called an axon
500
Object A is moving and collides into Object B which was stationary (motionless). After the collision, Object A bounces backwards going the opposite direction it was originally moving before the collision. Object B gets pushed in the direction that Object A was initially moving, which is now the opposite that Object A is moving after the collision.
Which object(s) had kinetic energy before the collision?
Which object(s) have kinetic energy after the collision?
Before the collision, Object A had kinetic energy and Object B did not
After the collision, both objects have kinetic energy
500
What is the Elastic Limit of the unidentified material in the graph? (Top line shown in graph)
43,000 to 44,000 Newtons of Force
500
Create a graph from the following data. Label the X & Y axis and set-up the scale for each axis. Correctly graph the data from the table and give the graph a proper title using the format: How the I.V. affects the D.V.
500
Draw a free body diagram of one of the cars from this system:
