Forces
Engineering
Electricity
Magnetism
Random
100
What force is responsible for pulling objects towards the Earth?
Gravity
100
True or False:
Structures must be built with strong materials or else it will collapse
False
100
What material is the best electrical conductor?
A) Plastic
B) Rubber
C) Glass
D) Metal
D) Metal
100
What force is responsible for the attraction and repulsion of magnetic objects?
Magnetic Force
100
Is the current from a wall socket a Direct Current or an Alternating Current?
Bonus Point! How many Volts does a wall socket supply?
Alternating Current
120
200
What force is responsible for resisting an object's motion when moving on a surface?
Friction
200
What is the most stable shape?
Triangle
200
What word is used to describe moving electrical charges or the flow of electrical charge?
A) Voltage
B) Current
C) Capacitor
D) Resistor
B) Current
200
What do we call the process of making an object temporarily or permanently a magnet?
Magnetization
200
Which famous physicist discovered gravity?
Sir Isaac Newton
300
Can an object with no net force still be in motion
Yes, it just won't accelerate
300
Why is the triangle the most stable shape?
Because any force applied to the triangle is evenly distributed
300
What does an electric current induce?
A magnetic field!
300
Draw a diagram of a magnetic field. Please label your North and South poles
300
What day is Pi Day?
March 14th (3.14)
400
What are the four forces that are responsible for keeping an airplane in the air?
Drag, Lift, Thrust, Gravity
400
Why is it important to have a shock absorber on a landing-device?
To minimize the shock or force that the passenger feels
400
What does a generator do?
It converts mechanical energy into electrical energy
400
How does an electromagnet work?
The current in the wire induces a magnetic field which is strengthened by an iron center
400
What is Newton's Second Law of Motion?
A) An object in motion will stay in motion
B) Force equals mass times acceleration
C) For every action, there is an equal and opposite reaction
D) E=mc2
B) Force equals mass times acceleration
500
What are the units of Force?
A) Newtons
B) Volts
C) Watts
D) Calories
A) Newtons
500
Define "Structural Integrity"
The ability of an object to hold together under a force, including its own weight, without breaking or deforming excessively
500
What does a motor do?
It converts electrical energy into mechanical energy
500
How does an electromagnetic motor work?
When the uninsulated piece is connected, current flows and induces a magnetic field. This field is attracted to the magnet, causing the loop to spin.
500
What does the E in E=mc2 stand for?
A) Electricity
B) Energy
C) Entropy
D) Enthalpy
B) Energy