Daily Practice
GCSE Science
- 1Atomic Structure
Define half-life.
- 2Atomic Structure and the Development of the Model
What observation showed that the atom is mostly empty space?
- 3Radioactivity, Half-Life and Nuclear Uses
Define the term 'half-life' of a radioactive isotope.
- 4Forces
A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 5Motion: Speed, Velocity and Acceleration
A car's velocity increases from 8 m/s to 20 m/s over 4 seconds. Calculate its acceleration.
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