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Vocabulary 1
Vocabulary 2
Multiple Choice 1
Multiple Choice 2
Critical Thinking
100
To measure the movement of an object, one must first locate the _____________.
What is position.
100
The first law of motion states that an object that is not moving will remain at rest because of __________.
What is inertia.
100
The first law of motion says that an object at rest will remain at rest unless-- A. it continues in a straight line B. A nearby star acts on it C. An outside force acts on it D. It is placed on a flat surface
What is C. an outside forces acts on it.
100
Do two skates traveling in different directions at the same speed have the same velocity? A. no, because the direction is different. B. no, because the skaters are different. C. yes, because the speed is the same D. yes, because the acceleration is the same
What is F. No, because the direction is different.
100
If an equal force acts on each of the following objects, which will have the greatest acceleration? A. a golf ball B. a football C. a soccer ball D. a baseball
What is A. a golf ball
200
The ___________ of an object is the distance it travels in a given period of time.
What is speed.
200
The force that you exert on an object at rest is called an ____________.
What is action force.
200
According to the third law of motion, for every action, there is -- A. a force sending it backward B. an equal and opposite reaction C. A greater force pushing on it D. A movement in all directions
What is B. An equal and opposite reaction.
200
A train traveling on a curved track at a constant speed is accelerating because-- A. the train travels faster around a curved track B. the direction of the train is constantly changing C. the train's size will eventually slow it down D. the clockwise direction of the train is constant
What is B. the direction of the train is constantly changing.
200
When a baseball player strikes a ball with a bat, the ball exerts a force on the bat. What is this an example of? A. universal law of gravitation B. Frame of reference C. The second law of motion D. the third law of motion
What is C. the second law of motion
300
The term used to describe the speed of an object in a certain direction is____________.
What is velocity.
300
That object exerts a force on you, called ________.
What is reaction force.
300
When you observe an object, how do you know if it is moving? A Its mass and velocity change. B. Its frame of reference changes. C. Its position changes. D. Its momentum changes.
What is C. Its position changes.
300
The brakes on an adult bicycle must be stronger than the brakes on a children's bicycle because-- A. a child's mass causes more momentum B. an adult's mass causes less momentum C. an adult rider is farther from the ground D. an adult rider will have more momentum
What is D. an adult rider will have more momentum.
300
Conservation of momentum explains how-- A. a spacecraft can travel in space for thousands of years B. a ball thrown into the air always falls back toward Earth C. trucks slow down when they are traveling uphill D. a pole can be knocked down when a moving car hits it
What is D. a pole can be knocked down when a moving car hits it
400
A change in the direction or speed of an object is called ___________.
What is acceleration.
400
An object in motion will travel in a straight line unless another force acts on it. An object in an __________travels around another object as a result of inertia and gravity working together.
What is orbit.
400
Suzette keeps her schoolbooks in a basket on the handlebars of her bicycle. When she rides, why do the books seem not to be moving? A. Her eyes must be playing tricks on her B. Books cannot move by themselves C. From her frame of reference, the books are stationary. D. From her frame of reference, the books are accelerating.
What is C. From her frame of reference, the books are stationary.
400
What do the laws of motion explain? A. how frame of reference influences movement B. The relationship between four basic elements C. the movement of objects on Earth and in space D. why all moving objects eventually stop moving
What is C. the movement of objects on Earth and in space.
400
At the airport, Sam and Jose are trying to get to their gate on time. They are walking at the same speed. Same takes the moving sidewalk, but Jose chooses to walk alongside. How can you tell that Sam is in motion even though he is standing still on the sidewalk?
What is Sam's position changes. First, he is located at the entrance of the moving sidewalk. Then he is at different positions along the sidewalk, until he finally gets off.
500
A truck that is moving at a high rate of speed is difficult to stop because of its _____________, which is a product of its velocity and mass.
What is Momentum.
500
According to the ___________, all objects are attracted to all other objects.
What is Law of Universal Gravitation.
500
If one car moves ahead of another car that is traveling in the same direction, do the cars have the same velocity? A. No, they are traveling in different directions B. Yes, they are traveling in the same direction. C. Yes, the direction and speed of the cars are the same. D. No, the cars are traveling at different speeds.
What is D. No, the cars are traveling at different speeds.
500
Inertia explains why-- A. friction can be overcome for all objects B. people in a car move forward in their seats when the car stops quickly C. gravitational forces are stronger on Earth than on the moon or other satellites D. the ground pushes against your feet when you run
What is B. People in a car move forward in their seats when the car stops quickly.
500
A clown is performing in front of a crowd. He is pretending to walk, but he is not actually changing his position in front of the crowd. Why can't we measure his speed?
What is Speed is a measure of distance and time. If the clown stays in one place, his distance will be equal to zero.