Question 42 10 points Save
A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will ideally have a kinetic energy that is

less than 40 J.

40 J.

more than 40 J.

impossible to predict without additional information

Question 43 10 points Save
After rolling halfway down an incline a marble's kinetic energy is

greater than its potential energy.

less than its potential energy.

the same as its potential energy.

impossible to determine.

Question 44 10 points Save
The ball rolling down an incline has its maximum potential energy at

a quarter of the way down.

the bottom.

halfway down.

the top.

Question 45 10 points Save
A ball rolling down an incline has its maximum kinetic energy at

the top.

the bottom.

three-quarters of the way down.

halfway down.

Question 46 10 points Save
If an object is raised twice as high, its potential energy will be

four times as much.

twice as much.

half as much

impossible to determine unless the time is given.

Question 47 10 points Save
Horses that move with the fastest linear speed on a merry-go-round are located

near the outside.

near the center.

anywhere, because they all move at the same speed.

Question 48 10 points Save
If a record player's rotational speed is doubled, then the linear speed of a pet hamster sitting on the edge of the record will

double.

halve.

remain the same.

Question 49 10 points Save
A coin and a ring roll down an incline starting at the same time. The one to reach the bottom first will be the

coin.

ring.

Both reach the bottom at the same time.

Question 50 10 points Save
A ring, a disk, and a solid sphere begin rolling down a hill together. The one to reach the bottom first is the

disk.

ring.

sphere.

They all reach the bottom at the same time.

Not enough information is given.

Question 51 10 points Save
Neglecting air resistance, which will roll from rest to the bottom of an incline first, an empty jar, or the same jar filled with peanut butter?

the filled jar

the empty jar

Both reach the bottom at the same time.

More information is needed.

Question 52 10 points Save
Which will roll down an incline in the shortest time, a can filled with water or the same can filled with ice?

water

ice

both the same

Not enough information is given.

Question 53 10 points Save
On a balanced see saw, a boy three times as heavy as his partner sits

1/3 the distance from the fulcrum.

more than 1/3 the distance from the fulcrum.

less than 1/3 the distance from the fulcrum.

Question 54 10 points Save
Consider a rotating donut-shaped space habitat where living quarters are on the inside surface farthest from the axis. If the rotational speed of the habitat increases, the apparent weight of people inside

is always zero.

stays the same.

increases.

decreases.

Question 55 10 points Save
Consider a bowling alley inside a rotating space torus (huge "donut"). Compared to your bowling experience on earth, you will notice that the ball

feels lighter when you throw it in the direction of the moving alley, and heavier when you throw it in the opposite direction.

veers to the right when you throw it in the direction of the moving alley, and to the left when you throw it in the opposite direction.

feels heavier when you throw it in the direction of the moving alley, and lighter when you throw it in the opposite direction.

none of these

Question 56 10 points Save
A swimming area in a rotating space habitat is located in a g region. If a diver can jump 1 m high in a 1 g region, how high can the same diver jump in the swimming area?

16 m

2 m

4 m

1 m

more than 16 m

Question 57 10 points Save
According to Newton, doubling the distance between two interacting objects

divides by 4 the gravitational force between them.

multiplies by 4 the gravitational force between them.

multiplies by 2 the gravitational force between them.

divides by 2 the gravitational force between them.

Question 58 10 points Save
What is the force of gravity on a 500-newton woman standing on the Earth's surface?

5000 N

50 N

250 N

500 N

none of these

Question 59 10 points Save
If the Earth's mass decreased to one-half its origi