ENNYSTON SCIENCE COMPETION: 2ND ROUND - JUNIOR 2

sinplify 10, 000 x 0.0034 in standard form

• 3.4 x 10

• 34 x0.1

• 0.34 x 100

• 34

What percentage of 5 is 3?

• 50

• 40

• 15

• 60

x is 15 more than y. Express the statement in form of an equation

• x = y - 15

• y = x + 15

• x = y + 15

• y = 15 - x

What is the range of x in the inequality:

3x > x + 16

• x > 4

• x < 4

• x > -8

• x > 8

Evaluate:

3(x - 5) = 18

• x = 10

• x = 11

• x = 1

• x = -1

All  the   following  are  examples   of   aquatic  habitat   except  ?       

• (a)  pond

• (b)  lawn

• (c)  sea

• (d)  stream

Calculate  the  work done   by  a  boy  of  mass   100kg   running  up  a   stairs  of  height  1.75m .  Use   m. g. h   where  g  =  10Ms-2

• 17.5 J

• 175 J

• 1750 J

• 2453

Power  is  equal   to  ------- 

• Work done/ time

• Time / work done

• Force / distance

• Distance / time

The  energy  a  body  possessed  by  virtue  of  its  position  is  called 

• Potential

• Kinetic

• Chemical

• heat

Which  of  the  following  is an  example  of  mutualism ?

• man  and  tapeworm 

• shark  and  remora  fish 

• honey bee and flowering plant

• cat and rat