Unit 6 and unit 9 revision | Baamboozle - Baamboozle

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The drawings shows a book hanging from a forcemeter. What is the weight of the book ?give the value and the unit

8 Newtons (8 N)

Metal are used for jewellery because they are ...

shiny

metals are strong and tough (hard), they do not ........... when dropped and do not crack easily.

shatter

list five properties of metals

solid at room temperature (except for mercury which is the only liquid metal), they are shiny, do not good conductors, malleable, ductile, sonorous

Metals can be hammered into shape, they are ....

Malleable

How is called the push of an object on another when they are touching

contact force

how is called the force acting on an object when it falls through the air

air resistance

what does streamlined mean ?

streamlined describes the shape of an object that has a low air resistance.

the pull of earth's gravity on an object

wheight

what type of energy is caused by friction?

heat energy

What is the weight of a sack of potatoes which mass is 15 kg (1 kg means 10 N)

150 N

Hard but can easily break

brittle

Look at the diagram, what are the directions (arrow) of the pushing and friction forces ?

friction (left) and push (right)

How is called the force produced when one surface slides over another

friction

Metals can be drawn out into wires, they are ....

ductile

when two forces cancel each other we say that they are...

Balanced

What name we give to the amount of matter in an object?

The mass

copper is used for electrical wiring because .... (two things)

it conducts electricity and it is flexible

list five properties of non-metals

many are gases at room temperature, dull, brittle, do not conduct heat and electricity well

Give the name of the TWO forces represented by the arrows

air resistance (upwards) and weight (downwards)

cobalt, nickle, iron and steel can be attracted by magnet they are ...

magnetic metals

what instrument is used to measure a force?

A forcemeter / Newtonmeter

Look at the diagram, what are the directions (arrow) of the contact force and weight?

weight (downwards) and contact force (upwards)

Give two reason electric wire are covered with plastic

plastic is an insulator/does not conduct electricity AND flexible

iron is used for bridges because it is .....

strong (