4Eu
What is mechanical energy?
A. Electric energy flow
B. Energy of movement
C. Stored heat energy
D. Sound energy
B. Energy of movement
Which material is a good conductor?
(Copper, Rubber, Plastic, Wood)
Copper
What does friction do?
A. Creates electricity
B. Speeds up objects
C. Stores energy
D. Slows moving objects
D. Slows moving objects
What is force?
A push or pull that can change the motion of an object.
What is static electricity?
A. Stationary electric charge
B. Moving electric current
C. Heat energy
D. Sound energy
A. Stationary electric charge
What is a quadrilateral?
Any four-sided polygon
What are prime numbers?
A counting number greater than 1 whose only two factors are 1and itself.
What is a divisor?
Number dividing.
What is perimeter?
The distance around a closed, flat shape.
What does the commutative property of addition mean?
You can change the order of the numbers you add, and the sum stays the same.
What is a decimal number?
Number with point.
What is the average?
Sum divided count
What is a factor?
Number multiplied.
What are reciprocals?
Two numbers whose product is 1.
What is a composite number?
A composite number is a whole number greater than 1 that has more than two factors (it can be divided evenly by numbers other than just 1 and itself).
Which is an example of a simple machine?
A. Battery
B. Pulley
C. Wire
D. Magnet
B. Pulley
What causes static electricity?
A. Magnetism
B. Friction
C. Gravity
D. Heat
B. Friction
What is expanded notation?
Expanded notation is a way of writing a number to show the value of each digit, based on its place value (ones, tens, hundreds, thousands, etc.). It expresses the number as the sum of each digit multiplied by its place value.
Example with whole numbers:
For 3,729:
3,000 + 700 + 20 + 9
(or 3×1000+7×100+2×10+9×13×1000+7×100+2×10+9×1)
What is a parallel circuit?
A circuit where components are connected in multiple paths.
What is volume in sound?
Sound loudness.
What is pitch in sound?
High or low.
Which material is an insulator?
A. Silver
B. Copper
C. Rubber
D. Aluminum
C. Rubber
What is an electric circuit?
An electric circuit is a complete, closed path that allows electric current to flow. It consists of a power source (like a battery), conductive wires, and one or more electrical components (like a light bulb or motor). The path must form a loop from the power source's positive terminal to its negative terminal for the current to flow.
What does Energy Transformation mean?
Energy transformation (or energy conversion) refers to the process in which energy changes from one form into another.
What is buoyancy?
An upward push [force] in fluids [liquids or gases]
or
Ability to float in a fluid