Year 7 Science Assessment Chapter 5

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

Good conductor of heat

• Metal
• Nonmetal

All of the following would classify an element as a metal except?

• Dull
• Luster
• Malleable
• Hard

Which of the following is a property of a non-metal?

• Conducts electricity and heats well
• Can be hammered into thin sheets
• Is brittle and breaks easily
• Has a shiny, metallic luster

A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal? 

• Hydrogen
• Arsenic
• Krypton
• Copper

If a material can easily be drawn into the shape of a wire, it is

• Ductile
• Magnetic
• Malleable
• Reactive

The property of allowing heat and electricity to pass through them,those are specially called as?

• Insulators

• Conductors

• Isobars

• Isosomes

Metals which produce ringing sound are called as?

• Sonorous

• Isosonorous

• Desonorous

• Asonorous

The materials which donot allow heat and electricity to pass through them are called as?

• Insulators

• Conductors

• Motors

• Generator

Alloys are created to improve the working properties and appearance of metals, they are made by combining two or more elements.

• True

• False