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.