Please answer all questions.

1			Each hadron consists of a proper combination of a few elementary components called
			A)	photons.
			B)	vector bosons.
			C)	quarks.
			D)	meson-baryon pairs.
2			Which of the following is not conserved in a nuclear reaction?
			A)	nucleon number.
			B)	baryon number.
			C)	charge.
			D)	All of the above are conserved.
3			In our universe, positrons have a very short-term existence because
			A)	they rapidly decay to other particles.
			B)	of the large number of electrons in our universe.
			C)	their speeds are very near the speed of light.
			D)	they "die" due to extremely low energy levels.
4			The first antiparticle found was the
			A)	positron.
			B)	hyperon.
			C)	quark.
			D)	baryon.
5			The proton, neutron, electron, and the photon are called
			A)	secondary particles.
			B)	fundamental particles.
			C)	basic particles.
			D)	initial particles.
6			The exchange particle of the electromagnetic force is the
			A)	gluon.
			B)	muon.
			C)	proton.
			D)	photon.
7			Particles that interact by the strong force are called
			A)	leptons.
			B)	hadrons.
			C)	muons.
			D)	electrons.
8			At the present time, the elementary particles are considered to be the
			A)	photons and baryons.
			B)	leptons and quarks.
			C)	baryons and quarks.
			D)	baryons and leptons.
9			The electron and muon are both
			A)	hadrons.
			B)	leptons.
			C)	baryons.
			D)	mesons.
10			Particles that make up the family of hadrons are
			A)	baryons and mesons.
			B)	leptons and baryons.
			C)	protons and electrons.
			D)	muons and leptons.