ETS
How many steps are in the Scientific Method process?
Name 1.
8 steps
Question, Research, Hypothesis, Experiments, Report, Conclusion, Analyze, Collect Data
What is the difference between potential and kinetic energy?
Potential - The ability to exert energy
Kinetic - The moving energy
What is Newton's 1st Law?
An object in motion will stay in motion unless something acts on it.
List 2 good conductors of magnets and 2 bad conductors of magnets.
Bad - Wood, Plastic, Paper, Aluminum, Copper, Glass
What are the 3 main particles of an atom?
Protons, electrons, and neutrons
Engineers created a model of a container to keep drinks cold. After testing, the temperature of the drink increased quickly.
Explain how engineers could use the test results from their model to improve the design.
Use a better insulator to keep the drinks cold.
What is the difference between velocity and acceleration?
Velocity - Speed of something in a certain direction
Acceleration - Increase in the rate of speed of an object.
What is Newton's 2nd Law? (Hint: it's an equation)
F = M x A
Force equals Mass times Acceleration
What is the magnetic field?
The invisible area around the magnet to show where the force is at.
What is happening when a solid turns into a liquid
Melting
A class is designing a bridge made of popsicle sticks to hold a small toy car. The bridge must be strong enough to hold the car’s weight but use as few sticks as possible. Which of the following best describes the problem the students are trying to solve?
a. How to make the bridge look realistic
b. How to build a bridge that is both strong and uses limited materials
c. How to test the car’s speed on different surfaces
d. How to make the bridge tall enough for decoration
B
The more the mass, the more kinetic energy something will have.
What is Newton's 3rd Law?
Action = Reaction
For every action, there is an equal and opposite reaction.
What type of magnetic is used for a short time and loses its magnetism when the magnet is removed?
What are the water particles on the grass in the morning known as?
Condensation
Students are designing a wind-powered car that must travel at least 5 meters using only wind from a fan. During testing, the car only travels 3 meters before stopping. Which change would best help the students improve their design to meet the goal?
Use a bigger fan to push it further, add a bigger sail, etc.
What is the difference between mean, median, and mode?
Mean - Average of all the numbers
Median - Center of a set of numbers
Mode - value appearing the most
A soccer ball does not move until it is kicked.
Newton's 1st law
What type of magnet keeps its magnetic force for a long time and is made from materials that stay magnetized?
What is the difference between a chemical and physical change?
Chemical - A new substance is formed
Physical - No new substance is formed
What is the difference between criteria and constraints?
Criteria - Required standards/goals
Constraints - Limits/Rules/Boundaries that it should follow
Kinetic Energy - ____________ Energy
Thermal Energy - ___________ Energy
Motion
Heat
Which law is this an example of?
A fireman is knocked backwards when the hose is turned on.
Newton's 3rd law
What type of magnet is made using electric currents?
Electromagnet
Chemical