ST 1
why do scientists use curiosity?
scientists want to learn more about the topics they study
What is estimation
An estimation is an approximation of a number based on reasonable assumptions.
What is force
Force is a push or pull
What is power?
Power is the rate at which work is done.
What is heat?
Heat is the transfer of thermal energy from a warmer object to a cooler object.
how do scientists use creativity?
Scientists may experience problems. Sometimes, it takes creativity to find a solutio.
What is life science?
Life science is the study of living things.
What is net force?
Net forced determines if and how an object will accelorate.
What is output force?
The force exerted on an object by a machine
What is thermal energy?
Thermal energy is the total energy of all the particles in an object.
Why is communicating important?
They share their research so other scientists can repeat it. It is important to repeat an experiment many times before accepting a result.
What do soil scientists do?
Soil scientists identify the minerals and nutrients it contain, and figure out how to use crops to improve the soil.
(T) or (F)
golf balls and baseballs can float or fly farther in space
True
How do you calculate efficiency?
divide the output work by the input work and multiply the result by 100 percen.
The temperature scale on which zero is the temperature at which no more energy can be removed from matter.
(T) or (F)
heavier objects fall faster than lighter ones.
False
When was Albert Einstein born?
1879
What is the law of universal gravitation?
The force of gravity acts between all objects.
(T) or (F)
an inclined plane is a flat, sloped surface.
true
Could you take a hot bath outside with no ceramic bathtub or running water?
Yes, this is possible in hot springs all over the world.
What is scientific theory?
A well tested explanation for a wide range of observation.
What is the name of the scientist designing behaviors of robots so they can help people in different ways?
Maja Mataric
When did Newton publish his work on gravity?
1687
What do second class levers do?
Second class levers increase force
How do hurricanes form?
these storms form when very warm, moist air rises quickly, creating an area of lower air pressure below.