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4/10 right · avg 3.3s · 2d 18h ago
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The ten questions
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- 1Science › PhysicsHardA Burgers vector describes the size and direction of what in a crystal?Wrong4.9s0
- 2Science › PhysicsHardA laser requires population inversion, meaning more atoms are in which state?Right2.5s+99
- 3Science › PhysicsHardCompton scattering shows that a scattered X-ray photon has what compared with the original?Wrong4.2s0
- 4Science › Inventions & ExperimentsEasyWhich shallow lidded dish is used in labs to grow bacterial cultures?Right2.7s+99
- 5Science › Units & MeasuresMediumOne bar of pressure equals how many pascals?Wrong2.4s0
- 6Science › PhysicsVery hardAbove which temperature does an antiferromagnet become paramagnetic?Wrong3.9s0
- 7Science › PhysicsEasyAlong with iron and nickel, which metal is strongly magnetic?Right1.8s+100
- 8Science › ScientistsMediumWhich nurse used statistics and charts to drive hospital hygiene reform?Wrong3.9s0
- 9Science › PhysicsMediumWhich effect makes an approaching siren sound higher pitched?Right1.0s+100
- 10Science › ScientistsExpertWhich Hungarian physicist's torsion balance tested the equivalence principle?Wrong6.3s0