Vocabulary
Mass and Speed
Math
Force and Energy
Micro:bit
100
A push or a pull.
What is a force?
100
Has the greatest effect on a collision.
What is speed?
100
The formula for force
F = ma
100
A child and a professional wrestler push each other. At the moment of collision, which can apply a greater force?
The are equal. BUT the child will accelerate more!
F = ma
100
These devices can detect changes in position, shape, or applied force and convert them into data that we can read and understand.
What is a sensor?
200
A diagram that shows the forces on a single object.
What is a Free Body Diagram?
200
The energy of motion.
What is kinetic energy?
200
The formula for speed
speed = distance/time
200
Two-part question!
When you triple the speed of an object what happens to the KE?
When you triple the mass what happens to the KE?
Speed will increase the KE 9 times (3^2)
Mass will increase 3 times
200
This programming structure would help a collision sensor keep checking for impacts over and over again automatically.
What is a loop?
300
Stored energy an object has because of its position or condition.
What is Potential Energy?
300
What is true about KE when the mass of an object is doubled in a collision.
What is: the energy also doubles?
300
Find the speed of a car that travels 40m in 10 seconds.
4m/s
300
You apply a force to an object, it bends but returns to its starting shape once you remove the force. What did the object not pass?
The elastic limit
300
This programming feature helps a sensor system decide whether a collision was 'small' or 'large' based on the force measurement.
What is a conditional?
400
The force that will work against motion to slow down an object.
What is friction?
400
A safer vehicle to drive in: slower or less massive?
What is slower?
400
What is the force on a box that has a mass of 1kg and an acceleration of 10m/s^2
10N
400
What is an energy transfer?
Energy moving between two objects in a collision, contact force!
400
What icon will show on the screen after 10 seconds?
a heart
500
If… then… statements, which execute a sequence of code based on whether a set of given conditions are met or not
What is a conditional?
500
This has the greatest effect on kinetic energy.
What is speed?
500
The speed of a horse is 45m/s. How long does it take it to travel 100m?
2.22 seconds
500
KE turns into this type of energy thanks to friction.
Heat or thermal energy (also sound)
500
What would need to happen for, "I DON'T KNOW" to show up?
It would need to be shaken AND a number other than 1 or 2 to be randomly selected.