Physical Science Test 1
An object travels 8 meters in the 1st second of travel, 8 meters again during the 2nd second of travel and 8 meters again during the 3rd second. Its accelerations is ______________.
0 m/s squared
When a diver of mass 100 kg experiences air resistance of 400 N her acceleration is... ((formula mg(12)/m=a))
0.6 g
A car has a certain maximum acceleration. When it tows another twice-as-massive car its max acceleration is...
1/3
A karate chop breaks a board with a blow of 3000 N. The force that acts on the hand during the event is
3000 N
A skydiver who weighs 500 N reaches terminal velocity at 90 km/h. The air resistance on a skydiver is...
500 N
Which of these is a scientific hypothesis (that could be proven wrong)
An atom is the smallest bit of matter in a material
Who was the first big playa in science?
Aristotle
What man changed the "earth centered view" to the view that the sun was the center of the Universe
Copernicus
What kind of scientific method did Galileo use?
Experiments and not just logic-- developed concept of inertia-- and concept of "things at rest tend to stay at rest..blah blah blah.."
Arnold and Suzie have a tug of war on a polished floor. Arnold wears socks and Suzie wears gym shoes, the likely winner is...
Suzie
The beginning of science started with which group of people?
The Greeks
Science spread throughout the world b/c of what major event?
The Roman Conquest
Which of the following is a scientific statement?
The moon is made of green cheese ((it is able to be scientifically disproven))
Science, art, religion need not contradict one another because..
all three operate in different domains
Which of the following involves, passion, talent, and intelligence? a. literature b. music c. art d. science e. all of the above
e. All of the above
A space probe in remote outer space continues moving...
even though no force acts upon it.
Success in science is mainly linked to emphasis on
experiments
The scientific method is most effective in ____________.
gaining, organizing, and applying new knowledge
In science, an educated guess is a _________
hypothesis
A ball is thrown upward and caught when it comes back down. When air resistance affects the ball compared with the initial upward speed. The speed when caught is...
less
The language of science is __________.
mathematics
In science, facts...
may change
A scientific hypothesis can be disproved with _________.
one reproducible experiment
The Greeks used what kind of scientific method?
reason and logic
The force exerted on the tires of a car to directly accelerate it along a road is exerted by the...
road
