Free Printable Friction & Metals and Non-Metals

Worksheets

Friction & Metals and Non-Metals

Total questions: 11

Worksheet time: 2mins

Name

Class

Date

Metals oxides are _____ in nature. Most metals form _____ oxides.

Basic, Acidic

Acidic, Basic

Acidic, Acidic

Basic, Basic

Acidic oxides turn ___ litmus to ___.

Red, Blue

Blue, Red

Green, Blue

Green, Red

If a few pieces of metallic copper are added into the solution of iron sulphate or if the iron nails are added to zinc sulphate, _____ reaction takes place.

No reaction

Massive reaction

Displacement reaction

Minute Reaction

_____ is a slow reaction of metals with atmospheric gas.

Displacement reaction

Electroplating

Corrosion

Reaction with water

What are the useful oxidation reactions?

Formation of water from Hydrogen and Oxygen.

Formation of rust on the Metal surface.

Digestion of food.

Burning of fuels

______ is wasted to overcome friction.

Roughness of surface

Heat

Energy

Efficiently

Name a natural lubricant

(a)

Name the factors affecting Fluid Friction

Speed of the object

Shape of the object

Size of the object

By making surface rough

Nature of the fluid

Choose the correct equation when ‘Magnesium metal reacts rapidly with dilute hydrochloric acid’

Mg + 2HCl $\longrightarrow$ 2MgCl2 + H2

Mg + 2HCl $\longrightarrow$ MgCl2 + 2H

Mg + 2HCl $\longrightarrow$ MgCl2 + H2

Mg + HCl2 $\longrightarrow$ MgCl2 + H2

10.

_{This is friction}

_{This is a static friction}

_{This is a streamlined shape}

_{This is a rolling friction}

11.

Rolling Friction ____ Sliding Friction

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Friction & Metals and Non-Metals

Total questions: 11

Worksheet time: 2mins

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