Mathematics Knowledge
What is the value of 'x' in the equation 2x+5=15?
What is 5?
The process by which plants use sunlight, water, and carbon dioxide to create their own food.
What is photosynthesis?
A machine that consists of two wheels of different sizes connected by a chain or belt.
What is a gear system (or pulley system)?
A handheld tool used to turn screws.
What is a screwdriver?
The unit used to measure electrical current.
The unit used to measure electrical current.
A triangle with angles measuring 90∘, 45∘, and 45∘ is called this type of triangle.
What is an isosceles right triangle?
The state of matter characterized by a fixed volume but not a fixed shape.
What is a liquid?
This is the point on a lever where the force of the load is applied.
What is the fulcrum?
This engine component converts the up-and-down motion of the pistons into rotational motion.
What is a crankshaft?
The unit used to measure electrical resistance.
What is an ohm?
A square with a side length of 5 units has this area and perimeter.
What are an area of 25 square units and a perimeter of 20 units?
This is the principle that explains why objects float in water.
What is buoyancy (or Archimedes' Principle)?
The type of simple machine that can change the direction of a force.
What is a pulley?
The part of a car's electrical system that stores energy.
What is the battery?
This law states that voltage equals current multiplied by resistance.
What is Ohm's Law?
To find the volume of a cylinder, you multiply the area of the base by this dimension.
What is the height?
The law that states energy cannot be created or destroyed, only transformed.
What is the Law of Conservation of Energy?
This term describes the advantage gained by a machine that allows a user to apply less force to do the same amount of work.
What is mechanical advantage?
The primary function of a car's radiator.
What is to cool the engine?
The component used to open and close a circuit.
What is a switch?
A rectangular box has a length of 4 ft, a width of 3 ft, and a height of 5 ft; this is its volume.
What is 60 cubic feet?
The layer of the Earth's atmosphere closest to the surface.
What is the troposphere?
If a small gear with 10 teeth is driving a large gear with 40 teeth, this is the gear ratio.
What is a 4:1 gear ratio?
This is the tool used to measure the voltage of a battery or circuit.
What is a voltmeter (or multimeter)?
In a parallel circuit, if one bulb burns out, this is what happens to the others.
What is that the others remain lit?