Super Survivors DQ 4-6 Quiz

True or false: Sound travels in straight lines.

• True
• False

True or false: Sound can pass through solid objects.

• True
• False

True or false: Sound reflects off hard surfaces.

• True
• False

You and a friend are playing a game of catch with a ball. Your friend throws the ball at you and you catch it. Which of the following shows the correct sequence of events involved in you catching the ball?

• Your eye sees the ball coming towards you and sends a message to your brain. Your brain processes the message and sends it to your arm, hand, and finger muscles via the nervous system. When you raise your arm, the muscles in your hand and arm contract.
• Your brain sees the ball coming towards you and sends a message to your eye. Your brain processes the message and sends it to your arm, hand, and finger muscles via the nervous system. When you raise your arm, the muscles in your hand and arm contract.
• Your brain sends a message to your arm, hand, and finger muscles via the nervous system. When you raise your arm, the muscles in your hand and arm contract. Then, your brain processes the message and sends a message to your eye.
• Your brain and eyes process the message at the same time. Your brain sends a message to your arm, hand and finger muscles via the nervous system. When you raise your arm, the muscles in your hand and arm contract.

What is amplitude?

• The speed that a wave travels
• The height of a wave from its resting position to its highest point
• The height of a wave from its lowest point to its highest point
• The distance between the same points on successive waves

Which of the below is the binary code for Line F in the grid above? Select your answer from the options below.

• 0, 1, 1, 1, 1, 0, 0, 1
• 1, 0, 0, 0, 0, 1, 1, 0
• 0, 1, 0, 1, 1, 0, 0, 1
• 1, 1, 1, 1, 0, 0, 1, 1

Which of the following statements are TRUE about Morse Code?

• A message can be sent over a long distance.

• Both sender and receiver need to have access to technology to use it.

• It can only be used to warn of danger.

• It uses a code.

• Both sender and receiver need to be visible to each other.