Module 8
What is the calmest part of a hurricane?
The eye
What is the acceleration of an object that moves with a constant velocity?
0
What is Newton's First Law of Motion?
An object in motion (or at rest) will tend to stay in motion (or at rest) until it is acted upon by an outside force
Which is the weakest of the fundamental forces?
Gravitational force
The force between the south pole of one magnet and the south pole of another magnet is measured. Is the force attractive or repulsive?
Repulsive
Why don't you see lightning from nimbostratus clouds?
Lightning cannot form unless the cloud is tall…and nimbostratus clouds are not
How many miles per hour does a car travel if it makes a 40-mile trip in 30 minutes?
80 miles/hour
A man pushes a heavy cart. If the man exerts a force of 200 Newtons on the cart to keep it moving at a constant velocity, what is the frictional force between the cart and the ground? Is this kinetic friction or static friction?
200 Newtons against the motion of the cart. Kinetic friction
What theory says that gravity is caused by the exchange of particles between objects with mass?
Graviton theory
In most chandeliers today, when one light bulb goes out, the rest stay lit. Are the light bulbs wired in series of parallel?
Parallel
What differentiates a tropical storm from a tropical disturbance?
Wind speed
Hadley climbs a tree. To measure how high she has climbed, she drops a rock and times its fall. It takes 1.3 seconds for the rock to hit the ground. How many feet has she climbed?
27.04 feet
A baseball player (mass = 75 kg) is running towards a base. In order to avoid being tagged by the ball, the baseball player slides into the base. If his acceleration in the slide is 5.0 meters per second2 south, what is the kinetic frictional force between the player and the ground?
375 Newtons to the south
List the outer planets
Hudson charges an object with a positively charged rod. If the object develops a negative charge, how did Hudson charge the object?
He charged the object by induction