Electricity
What is electricity?
The flow of electrons that can be used to power devices.
What is DNA?
Molecules in our body that determine our traits.
How many laws does Newton's Laws of Motion have?
3
You try to push a couch, and fail to make it move. What do you have to do?
Apply more force.
What is kinetic energy?
Energy that an object has while it is in motion.
What is static?
A crackling or hissing noise on TV, radios, etc.
What is a genetic mutation?
A permanent mistake in the DNA that changes our traits, some genetic mutations can be dangerous and others not.
What is Newton's first law?
"An object at rest will stay at rest unless an unbalanced force is acted upon it.?
What would have more force: a car, or a truck?
A truck, since it has a higher mass.
What is potential energy?
Energy stored in an object before it moves.
Which of the following uses electricity? Compass, Kindle, Telescope, Mechanical clock.
Kindle
What are the four parts of DNA?
Adenine (A), Cytosine (C), Guanine (G), and Thymine (T).
Newton's second law?
F=ma
Which factors does force depend on?
Mass and acceleration.
A ball is lying sitting on top of a shelf. Does it have potential energy or kinetic energy?
Potential energy
Which of the following metals conduct electricity: copper, lead, titanium.
Copper
What is the shape of DNA?
A twisted ladder.
Newton's third law?
"For every action, there is an equal and opposite reaction."
What is the unit of measure for force?
Newtons (N)
A ball is rolling down the hill. Which type of energy does it have?
Kinetic energy.
What metal doesn't conduct electricity: gold, nickel, aluminum, iron, lead.
Lead
What does DNA stand for?
Deoxyribonucleic Acid
Newton's first law is also known as the law of _____.
intertia
In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net force?
20 N
Which factors does kinetic energy depend on?
Mass and speed (or velocity.)