Question 1

A sample of ethanol has a volume of 240m³.Its mass is found to be 190.0g. what is its density

Accepted Answer

0.79 $\frac{g}{m}$ ³

Answer

0.89 $\frac{g}{m}$ ³

Answer

0.77 $\frac{g}{m}$ ³

Answer

0.56 $\frac{g}{m}$ ³

Question 2

A cyclist completed a 1500m stage of a race in 37.5s. What is her average speed?

Accepted Answer

40 $\frac{g}{m}$

Answer

40 $\frac{g}{m}$

Answer

40 $\frac{g}{m}$

Answer

40 $\frac{g}{m}$

Question 3

An aircraft accelerates from 100 $\frac{g}{m}$ to 300 $\frac{m}{s}$ in 100s. What is its acceleration?

Accepted Answer

2.0 $\frac{g}{m}$ ²

Answer

2.0 $\frac{g}{m}$ ³

Answer

2.0 $\frac{g}{m}$ ³

Question 4

What is the difference between mass and weight?

Accepted Answer

Weight is a force and mass a unit measure

Question 5

A car of mass 600kg is moving at 15 $\frac{g}{m}$ . What is its momentum?

Accepted Answer

9000kg $\frac{g}{m}$

Answer

8000kg $\frac{g}{m}$

Answer

9000g $\frac{g}{m}$

Question 6

Accepted Answer

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