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In Ivan Pavlov’s classical-conditioning experiments, what response did dogs learn to make when they heard a bell?
Answer
Salivate
In the 1843 Joule experiment with falling weights, what did the measured water heating demonstrate?
Answer
Mechanical work converts to heat
In the 1886 Hertz experiment, what did sparks across a gap prove about James Clerk Maxwell’s theory?
Answer
Electromagnetic waves exist
In Ørsted’s 1820 experiment, what did a current-carrying wire deflect near a compass?
Answer
The compass needle
In Michael Faraday’s 1831 electromagnetic-induction experiment, what did changing magnetism produce in a wire coil?
Answer
An electric current
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Latest trivia questions
In the 1843 Joule experiment with falling weights, what did the measured water heating demonstrate?
Answer
Mechanical work converts to heat
In the 1886 Hertz experiment, what did sparks across a gap prove about James Clerk Maxwell’s theory?
Answer
Electromagnetic waves exist
In Ørsted’s 1820 experiment, what did a current-carrying wire deflect near a compass?
Answer
The compass needle
In the 1881 Pasteur anthrax experiment, what protected vaccinated sheep from the disease?
Answer
An anthrax vaccine
In the 1944 Avery–MacLeod–McCarty experiment, which bacterial substance was destroyed by DNase?
Answer
The transforming DNA
In Stanley Milgram’s obedience experiment, what authority figure instructed participants to continue the procedure?
Answer
An experimenter in a lab coat
What is the name of the meteorite crater in Arizona formed about 50,000 years ago?
Answer
Meteor Crater