Question 
Answer 
Wrong Answers 
A car initially at rest accelerates in a straight line at 4 m/s². What will be its speed after 3 seconds? 
12 m/s   82.9% 
3 m/s   2.5% 
4 m/s   4.9% 
7 m/s   3.5% 

How can a positively charged object be described? 
deficient of electrons   74% 
deficient of protons   5.2% 
deficient of neutrons   4.3% 
excess of electrons   10.5% 

Acceleration due to gravity on or near the surface of Earth is ____ m/s². 
9.81   73.8% 
6.02   6.2% 
6.67   6.4% 
9.11   7.6% 

What did Galileo define as the property of a moving object continuing to move? 
inertia   73.2% 
velocity   11.2% 
acceleration   6.6% 
direction   3.1% 

Potential energy is the energy possessed by an object due to what? 
its position   70.6% 
its momentum   13.8% 
its velocity   5% 
its acceleration   4.5% 

Which device stores and releases electrical charges? 
capacitor   70.4% 
resistor   4.2% 
semiconductor   8.5% 
transistor   10.8% 

Which one of the following is not a vector quantity? 
kinetic energy   70.2% 
force   10% 
velocity   5.9% 
acceleration   7.9% 

If the current in a wire is 6 amperes, how much charge flows through it in 2 seconds? 
12 coulombs   67.7% 
8 coulombs   3.2% 
6 coulombs   5.9% 
3 coulombs   17% 

How is density defined? 
mass divided by volume   66.9% 
mass times volume   14.8% 
mass plus volume   2.1% 
volume divided by mass   10.1% 

Whose law relates the distance a spring stretches to the force applied to the spring? 
Hooke's law   65% 
Le Chatelier's principle   9.6% 
Boyle's law   12.8% 
Fermat's principle   6.5% 

Which of the following is a physical quantity that has magnitude but no direction? 
scalar   64.4% 
vector   9.3% 
resultant   6.5% 
velocity   13.8% 

Heat transfer by radiation occurs through what? 
electromagnetic waves   62.2% 
molecular and electronic collisions   19.4% 
atmospheric currents   6.5% 
direct contact   5.7% 

Which of these can be best defined as the resistance to motion of one object moving relative to another? 
friction   62.1% 
shear   13.9% 
tension   8.2% 
torque   9.6% 

Momentum is the product of which two properties? 
mass and velocity   60% 
mass and acceleration   17.9% 
mass and force   6.9% 
acceleration and force   9.1% 

In alpha (α) decay, the proton number of parent nuclide…? 
decreases by 2   59.2% 
increases by 1   12% 
increases by 2   12.1% 
decreases by 4   10.4% 

The speed of light is equal to ____ × 10⁸ m/s. 
3.00   58.8% 
1.38   13.1% 
6.63   13.6% 
8.85   8.2% 

What is the energy process of our Sun? 
nuclear fusion   58.1% 
nuclear electromagnetic spectrum   5.5% 
nuclear fission   24.4% 
nuclear radioactive decay   6% 

Which part of the electromagnetic spectrum has the shortest wavelength? 
gamma rays   56.4% 
infrared   18% 
UV rays   11.6% 
visible light   8% 

A wave with a relatively long wavelength will also have...? 
a long period   56.4% 
a high frequency   12% 
a large amplitude   11.2% 
a small amplitude   14.4% 

Which statement says, 'for every action there is an equal and opposite reaction'? 
Newton's third law of motion   55.5% 
Newton's law of universal gravitation   3.8% 
Kepler's first law of planetary motion   2% 
Newton's second law of motion   32.6% 

A newton is equal to which of the following? 
kilogrammeter per second squared   53.5% 
kilogrammeter per second   14.8% 
meter per second squared   11.9% 
kilogram per metersecond   13.6% 

A period of 0.005 seconds would be equivalent to a frequency of how many Hz? 
200   48.8% 

Who is the author of The Universe in a Nutshell, On the Shoulders of Giants, and A Brief History of Time? 
Stephen Hawking   43.4% 
Richard Feynman   18.6% 
J. Robert Oppenheimer   17.3% 
Carl Sagan   14.5% 

When a car rounds a curve at high speed, the ____ exerts a centripetal force on ____. 
road; tires   42.7% 
tires; road   24.8% 
car; road   10% 
car; tires   16.5% 

Who received the 1935 Nobel Prize in Physics for the discovery of the neutron? 
James Chadwick   40.1% 
Paul Dirac   8.8% 
Enrico Fermi   22% 
Werner Heisenberg   22.9% 

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