Is speed a vector or a scalar quantity?

What is the most important difference between a scalar and a vector quantity?

Why is it important to distinguish between scalar and vector quantities in physics

What is a vector?Read this to meA vector is a quantity that has only has a magnitude and not a direction (other than possibly a negative sign)A vector is a quantity that has only a direction (not a magnitude)A vector is a quantity that has both a magnitude and a direction.A vector is the same type of quantity as a scalar.I don't know

What is a scalar?Read this to meA scalar is a quantity that has only has a magnitude and not a direction (other than possibly a negative sign).A scalar is a quantity that has only a direction (not a magnitude)A scalar is a quantity that has both a magnitude and a direction.A scalar is the same type of quantity as a vector.I don't know

What is a scalar quantity?A quantity which has magnitude and directionA quantity which has magnitude onlyA quantity which has direction onlyA quantity which has neither magnitude nor direction2What is a vector quantity?A quantity which has magnitude onlyA quantity which has neither magnitude nor directionA quantity which has direction onlyA quantity which has magnitude and direction3Which of the following is a scalar quantity?ForcePressureVelocityDisplacement4Which of the following is a vector quantity?EnergyTemperatureWeightArea5Joe drives 30 km north, then 40 km south.  What distance does he travel during this journey?70 km10 km0 km–10 km6Joe drives 30 km north, then 40 km south.  What is his displacement (from his starting position) at the end of this journey?10 km north70 km north10 km south70 km south