Physical Science Variety
This device can help measure the mass of small objects.
What is a triple beam balance?
The force that brings objects to a stop is called this.
What is friction?
The speed calculated at one moment in time is called ______________ speed.
What is instantaneous speed?
H2O
What is 3?
List 1 advantage of wind energy.
What is cheap or renewable?
A __________ is a push or pull on an object.
What is a force?
This type of friction keeps a bicycle moving safely forward.
What is rolling friction?
The difference between starting and ending points defines this term.
What is displacement?
H2O2
What is 4?
The main problem with hydroelectric power plants is that they disrupt these "fishy" environments.
What are aquatic ecosystems?
This type of mixture is the same throughout. A cold glass of sweet tea would be an example.
What is a homogeneous mixture?
This type of friction will slow down a baseball player as he slides into second base.
What is sliding friction?
What is momentum?
2NaCl
What is 2?
What is killing birds or noisy?
The SI unit for temperature is the _________.
What is Kelvin?
What is static friction?
An object's resistance to change in motion describes this term.
What is inertia?
5Mg(OH)2
What is 25?
List 1 advantage of nuclear energy.
What is produces a lot of energy or saves fossil fuels?
Describe the energy transformation that occurs when an athlete eats an energy bar before a big race.
Answers will vary.
Which object would have the greatest static friction: a refrigerator or a card table?
What is the refrigerator (heavier of the objects)?
The change in velocity divided by the time it takes to occur is called this.
What is acceleration?
2Li2SO4
What is 14?
This is the main reason solar energy remains a difficult source to rely on completely.
What is the cost?