TCC Mid Term Hist 1302

2. The scientist to first introduce the concept of inertia was:

Galileo

4. An object that has kinetic energy must be:

Moving

4. The conservation of momentum is most closely related to:

Newton's Third Law

3. A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the force required to keep the puck sliding at constant velocity is:

0 N

2. The average speed of a horse that gallops a distance of 10 km in a time of 30 minutes is:

20 km/h.

5. What is the force of gravity on a 500-N woman standing on Earth's surface?

500 N

4. An object that has potential energy may have this energy because of its:

Location

4. What does an object have when moving that it doesn't have when at rest?

Momentum

4. A car traveling along the highway needs a certain amount of force exerted on it to stop. More stopping force may be required when the car has:

More Mass More momentum Less stopping Distance

1. A truly educated person is knowledgeable about:

Science The Arts Religion

4. A moving object has:

Speed Momentum Velocity Energy

3. The force required to maintain an object at a constant velocity in free space is equal to:

Zero

3. Two books are tied together with a length of string. With the string taut, one book is qushed off the edge of a table. As it falls, the other book is dragged horizontally across the table surface. With no friction, acceleration of the books is:

a value between zero and g.

1. Using science to analyze nature:

add depth to our understanding and therefore adds to our appreciation of nature.

1. Science, art and religion do not contradict one another because:

all three have different domains.

5. The amount of gravitational force that acts on the space shuttle while in orbit is:

almost as much as the shuttle's weight on Earth's surface.

2. Which has the greater mass?

an automobile battery

5. Earth's gravitational field extends:

both inside and outside Earth and throughout the entire universe.

5. A supplier wants to make a profit by buying metal by weight at one altitude and selling it at the same price per pound at another altitude. The supplier should:

buy at a high altitude and sell at a low altitude.

4. A cannon recoils from firing a cannonball. The speed of the cannon's recoil is small because the:

cannon has more mass than the ball.

3. Whirl a rock at the end of a string and it follows a circular path. If the string breaks, the tendency of the rock is to:

follow a straight-line path.

2. One object has twice as much mass as another object, and also has twice as much:

inertia

2. A bullet is dropped into a river from a very high bridge. At the same time, another bullet is fired from a gun, straight down towards the water. Neglecting air resistance, the acceleration just before striking the water:

is the same for each bullet.

2. Whenever the net force on an object is zero, its acceleration:

is zero.

3. A force is a vector quantity because it has both:

magnitude and direction.

2. Density is the ratio of:

mass to volume.

1. Science and technology are:

related to one another, but are not the same thing.

3. A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that:

the milk carton has inertia.

5. If the Sun were twice as massive:

the pull of Earth on the Sun would double.

1. If experimental findings are not reproducible:

the results are not considered valid.

4. Two identical arrows, one with twice the kinetic energy of the other, are fired into a hay bale. The faster arrow will penetrate:

twice as far as the slower arrow.

2. Which direction does a table push a book resting on it?

up

2. As an object freely falls its:

velocity increases.

3. Two objects of the same size but unequal weights are dropped from a tall tower. Taking air resistance into consideration, the object to hit the ground first will be:

the heavier object

3. A push on a 1-kg brick accelerates the brick. Neglecting friction, to equally accelerate a 10-kg brick, one would have to push with:

10 times as much force.

4. A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum is:

Doubled

5. If the mass of Earth somehow increased with no change in radius, your weight would:

Increase also

5. Two objects move toward each other because of gravity. As the objects get closer and closer, the force between them:

Increases

4. Which of the following has the largest momentum relative to the Earth?

a pickup truck speeding along a highway

1. In science, a theory is:

a synthesis of a large body of well-tested knowledge.

5. Inside a freely falling elevator, there would be no:

apparent weight on you.

3. Neglecting friction, a large block of ice and a small block of ice start sliding down an incline together. The heavier block will get to the bottom:

at the same time as the light block.

1. When a scientist is dishonest and reports false information, he or she:

gets no second chance in the scientific community.

5. According to Newton, the greater the masses of interacting objects, the:

greater the gravitational force between them.

1. Science is a body of knowledge that goes back to:

humankind's beginnings.

1. In science, an educated guess is a:

hyphothesis

1. The statement, "There are regions beneath Earth's crust that will always be beyond the reach of scientific investigation," is a:

speculation.

5. Newton discovered:

that gravity is universal.

3. A feather and a coin will have equal accelerations when falling in a vacuum because:

the force of gravity is the same for each in a vacuum.

2. Compared with the mass of a certain object on Earth, the mass of the same object on the Moon is:

the same.