SCIN 131 Week 1 quiz

SCIN 131 Week 1 quiz
Question 1 of 254.0 Points
Which of the following is a law?
A.The universe began as a cosmic explosion called the Big Bang.
B.A stone dropped from an altitude of 450 m falls to the ground in 9.6 s.
C.A body in motion stays in motion unless acted upon by force.
D.The star closest to Earth is moving away from Earth at high speed.
Question 2 of 254.0 Points
The result of collisions between gas molecules and the surfaces around them is: A.mass
B.temperature
C.color D.pressure
Question 3 of 254.0 Points
Hydrogen is an example of:
A.a molecule.
B.a mixture.
C.an atom.
D.a bond.
Question 4 of 254.0 Points
Which scientist discovered penicillin?
A.Feynman
B.Fleming C.Dalton D.Lavoisier
Question 5 of 254.0 Points
Which scientist worked on combustion reactions?
A.Lavoisier
B.Dalton C.Fleming D.Feynman
Question 6 of 254.0 Points
Where can you find chemicals? A.in a chemical stockroom.
B.in a hardware store.
C.all around you and even inside you.
D.all of these.
Question 7 of 254.0 Points
Which characteristic is necessary for success in understanding chemistry?
A.all of these are keys to success.
B.curiosity.
C.mathematical skills.
D.asking questions.
E.commitment.
F.practice.
G.not procrastinating.