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Physics MCQ -8
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Q: Which property of a body resists change from a state of rest or of motion?
1 point
A density
B mass
C volume
D weight
Clear selection
Q:Four beakers contain the same liquid.
1 point
A
B
C
D
Clear selection
Q: Which quantity is a vector?
1 point
A energy
B force
C speed
D time
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Q:Which type of radiation consists of electrons?
1 point
A alpha-particles
B beta-particles
C gamma-rays
D X-rays
Clear selection
Q: Which component, when used in a circuit, allows current to pass in only one direction?
1 point
A:
B
C
D
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Q: A sample of a radioactive isotope produces a count rate of 10 000 counts per minute. The half-life of the isotope is one day. What was the count rate of the sample two days ago?
1 point
A 2500 counts per minute
B 5000 counts per minute
C 20 000 counts per minute
D 40 000 counts per minute
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Q: A block of weight W rests on a side of area A. The gravitational field strength is g. What is the pressure exerted on the ground due to the block?
1 point
WA
W/A
WA/g
W/g
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Q: A student determines the circumference of a golf ball. Which instrument gives a reading that is the circumference of the golf ball?
1 point
A calipers
B micrometer
C rule
D tape
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Q:
1 point
A The nucleus contains 7 neutrons and 8 protons.
B The nucleus contains 7 neutrons and 15 protons.
C The nucleus contains 7 protons and 8 neutrons.
D The nucleus contains 7 protons and 15 neutrons.
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Q: A split-ring commutator is used in a simple d.c. motor. It reverses the current in the coil. How often does it reverse the current?
1 point
A every quarter turn
B every half turn
C every full turn
D every two turns
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