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Physicists use digital timers to measure time.
When using a ruler, the line-of-sight must always be parallel to the ruler.
The correct reading on a measuring cylinder is taken at the top of the meniscus.
1 cmÂ³ is equivalent to 1 ml.
Hand-operated stopwatches have an accuracy limited by human reaction time.
Scalars have both magnitude and direction.
Speed is a scalar quantity.
The force acting on a car is a vector quantity.
A bicycle with a mass of 80 kg and a rider of mass 60 kg has a total mass of 140 kg.
The volume of a mug is a vector quantity.
The velocity of an object is described as 3.0 m/s to the right.
Acceleration is a scalar quantity.
To determine the resultant force of two forces acting together, you can use a scale drawing.
The resultant force of a 2.0 N and 3.0 N force both acting to the right is 1.0 N.
When adding two vectors at right angles, you can use Pythagoras\’ rule to find the magnitude of the resultant vector.