9 Seven Wonders Of The World
Year 9 Quiz on Seven Wonders, Simple Machines, Electricity and Ecosystems.
- 1.Which of the Ancient Seven Wonders of the World is still in existence?
- A.
Hanging Gardens of Babylon
- B.
Lighthouse of Alexandria
- C.
Colossus of Rhodes
- D.
Pyramid of Giza
- 2.Name the simple machine that has a fulcrum.
- A.
Lever
- B.
Pulley
- C.
Inclined Plane
- D.
Wheel and axel
- 3.When sitting on a seesaw, a heavier person needs to sit _______________ the fulcrum than the lighter person to balance the seesaw.
- A.
Closer to
- B.
Further from
- C.
Equally as far from
- D.
More info needed to answer this question
- 4.Which correctly describes the relationship between the number of pulleys in a system and the effort required to lift the load?
- A.
The more pulleys, the more effort force required.
- B.
The more pulleys, the less effort force required.
- C.
The more pulleys, the longer you have to pull the load.
- D.
The more pulleys, the less you have to pull the load.
- 5.In using an inclined plane, the trade off in this machine is:
- A.
The less effort force required the further you have to push/pull the load.
- B.
The more effort force required the further you have to push/pull the load.
- C.
The less effort force required the shorter you have to push/pull the load.
- D.
More information is needed to answer this question.
- 6.The main purpose of the Hoover Dam was to
- A.
Provide a water source for residents.
- B.
Change the flow of the Colorado river.
- C.
Generate electricity.
- D.
Create jobs in the area.
- 7.In a power station, coal is used to heat up water so that what can spin?
- A.
The water pipes
- B.
The turbines
- C.
the generator
- D.
The tap
- 8.The three essential components of an electric circuit are:
- A.
Battery, wire and globe
- B.
Battery, wire and resistor
- C.
Power supply, globe and resistor
- D.
Load, conducting path and power supply
- 9.The potential energy of a circuit can also be described as
- A.
The voltage
- B.
The current
- C.
The resistance
- D.
The flow of electrons
- 10.The current in an electric circuit is measured by
- A.
A voltmeter
- B.
An ammeter
- C.
A power pack
- D.
A resistor
- 11.A food chain is more complex than a food web.
- A.
True
- B.
False
- 12.Decomposers wait for a plant or animal to die before consuming.
- A.
True
- B.
False
- 13.Heat is the main loss of energy from one trophic level to the next.
- A.
True
- B.
False
Questions: 10 | Attempts: 21024 | Last updated: Jun 16, 2020
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