Fact 1: Friction causes an object to lose energy. Fact 2: Friction causes the decline of speed. Given the two facts above, the decline of speed is associated with what?
OPTIONS:
- an object gaining energy
- a lot of human deaths
- decrease stamina
- hyperthyroidism
- an object losing energy
- an object gaining momentum
- body temperature reduces
- an object going faster

Answer: an object losing energy

Fact 1: Using a gasoline engine requires burning gasoline. Fact 2: After the car is moving, the gasoline engine kicks in. Given the two facts above, using what can require burning gasoline?
OPTIONS:
- Lead
- oil
- calculator
- woodfire
- fire
- running shoes
- coal
- car

Answer: car

Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: An electrical switch directs current to one of several wires. Given the two facts above, what directs current?
OPTIONS:
- streams
- switch
- rivers
- squids
- chemicals
- streams.
- hormones
- spring

Answer:
switch