Question 1

the base unit of length in the metric system is the...................

Accepted Answer

meter

Answer

liter

Answer

kilogram

Answer

kelvin

Question 2

Burning wood is an example………….

Accepted Answer

chemical change

Answer

chemical property

Answer

physical property

Answer

physical change

Question 3

mass is the……………………

Accepted Answer

quantity of matterin an object

Answer

all of the above

Answer

the intensity of the force

Answer

the density of a substance

Question 4

we heat 120 gram of unknown substance by adding 780 calories andits temperature rose by 12 C , what is the specific heat of this substance

Accepted Answer

0.54 cal/g.c

Answer

54cal/g.c

Answer

1.50cal/g.c

Answer

43cal/g.c

Question 5

1 megagram =…………… gram

Accepted Answer

106

Answer

10-6

Answer

109

Answer

10-9

Question 6

One decimeter is equal to.................

Accepted Answer

1x 10^-1m

Answer

1x 10³ m

Answer

1x 10^-2m

Answer

1x 10²m

Question 7

which of the following ischemical change.....................

Accepted Answer

burning gasoline

Answer

melting lead

Answer

making ice cubes

Answer

boiling oil

Question 8

the SI unit for mass is………………..

Accepted Answer

kilogram

Answer

Cm3

Answer

meter

Answer

gram

Question 9

deposition is the change of matter from

Accepted Answer

gas to solid

Answer

solid to liquid

Answer

liquid to solid

Answer

liquid to gas

Question 10

if 52 ml of liquid has a mass of 11.5 g what it its density

Accepted Answer

0.22 g/ml

Answer

0.22 g/l

Answer

2.25 g/ml

Answer

2.5 cm/ml

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