Consider the situations below. Which of these is the BEST example of Newton's 1st Law (inertia)?(1 point)
Responses
Tom uses a cane to walk across the road.
Tom uses a cane to walk across the road.
A bird takes flight from the ground.
A bird takes flight from the ground.
A tennis player throws the tennis ball into the air for a serve and the ball falls to the ground.
A tennis player throws the tennis ball into the air for a serve and the ball falls to the ground.
You go down a steep hill in a sled and it feels like your stomach is going up into your throat.
You go down a steep hill in a sled and it feels like your stomach is going up into your throat.
A bird takes flight from the ground.
If the distance between two objects decreases and the masses of the objects remain the same, then the force of gravity between the two objects:(1 point)
Responses
remains the same
remains the same
decreases
decreases
increases
increases
increases then decreases
increases
Which of these factors affect electric force? (1 point)
Responses
Whether the charge on an object is positive or negative
Whether the charge on an object is positive or negative
The amount of the electric charge
The amount of the electric charge
The distance between two charged objects
The distance between two charged objects
All of the above
All of the above
All of the above
Cardinals are a species of bird found in the U.S. The females of the species are usually either grey or brownish in color. However, a full grown male cardinal is bright red.
Why do male cardinals have this bright coloring?
(1 point)
Responses
It helps them attract potential mates.
It helps them attract potential mates.
It helps them find insects to eat.
It helps them find insects to eat.
It helps them when they fly south for the winter.
It helps them when they fly south for the winter.
It helps them hide from predators.