Question: Choose your answer.

Which situation would most likely cause an object to travel in a circular motion?

OPTIONS:
- one force acting on the object in the opposite direction of the motion
- two forces acting on the object in the same direction as the motion
- one force acting on the object perpendicular to the direction of the motion
- two forces acting on the object in different directions to the motion
My Answer: one force acting on the object perpendicular to the direction of the motion

Question: Choose your answer.

The primary function of a doorbell circuit is to convert electrical energy into

OPTIONS:
- sound.
- motion.
- radiant energy.
- chemical energy.
My Answer: sound.

Question: Choose your answer.

Mosquitoes have adapted to detect carbon dioxide using certain sensory nerves. Mosquitoes instinctually move toward greater concentrations of carbon dioxide. What is the importance of this adaptation?

OPTIONS:
- It helps mosquitoes find food.
- It helps mosquitoes find mates.
- It helps mosquitoes find clean air.
- It helps mosquitoes find shelter.
My Answer: It helps mosquitoes find food.

Question: Choose your answer.

Which word best describes the speed of a cart that has a positive velocity and a negative acceleration?

OPTIONS:
- slow
- fast
- decreasing
- increasing
My Answer:
decreasing