Vocabulary
Vocabulary
True or False - Key Facts
2.4 Assessment Questions
Random - Unit 2 Chapter 1
100
cause
an event or process that leads to a result or change
100
effect
a result or change that happens because of an event or process
100
True or False?
The same strength force can affect the velocity of different objects in different ways.
True
The same strength force can affect the velocity of different objects in different ways.
100
Scientists are modeling different ways a satellite and an asteroid might crash into each other. They used the same satellite in both crashes, but two different asteroids—a black one with more mass for Crash 1 and a gray one with less mass for Crash 2. Use the information from the diagram to answer.
In which crash does a satellite experience the stronger force? 
Crash 1
100
True or False?
Pushing or pulling an object that is not already moving can make that object start to move.
True
200
exert
to apply a force
200
infer
to reach a conclusion using evidence and reasoning
200
True or False?
How an object changes velocity depends on the direction of the force exerted on that object.
True
How an object changes velocity depends on the direction of the force exerted on that object.
200
Eugene and Van were playing with toys in a swimming pool. They crashed a rubber duck into two toy boats: a blue boat with less mass and an orange boat with more mass. The rubber duck had the same mass in both crashes. Use the information in the diagram to answer.
In which crash did the rubber duck experience a stronger force?
Crash 2
200
True or False?
Friction is a force exerted in the direction the same to an object's motion, which means friction will cause an object’s velocity to decrease.
False
Friction is a force exerted in the direction opposite to an object's motion, which means friction will cause an object’s velocity to decrease.
300
collision
the moment when two objects hit each other
300
friction
a force between an object and the surface it is moving over
300
True or False?
The force of an object can be determined by dividing the distance traveled by the time it took to travel that distance.
False
The velocity of an object can be determined by dividing the distance traveled by the time it took to travel that distance.
300
Engineers are designing a new car and they need to test their ideas by modeling crashes with different types of trucks. They are using a more massive garbage truck for Crash 1 and a less massive pickup truck for Crash 2. The green test car has the same mass in both crashes. Use information from the diagram to answer.
In which crash did the green test car experience a stronger force?
Crash 1
300
True or False?
How an object changes velocity depends on the speed of the force exerted on that object.
False
How an object changes velocity depends on the direction of the force exerted on that object.
400
mass
the amount of matter that makes up an object
400
kinetic energy
the energy that an object has because it is moving
400
True or False?
If the same strength force is exerted on two objects but the objects have different masses, the object with less mass will have a smaller change in velocity.
False
If the same strength force is exerted on two objects but the objects have different masses, the object with less mass will have a greater change in velocity.
400
Alice and Kai were playing air hockey, which is a game where players hit a puck with paddles so the puck slides across a table. After the game, they were crashing the puck and two different paddles. The puck was the same in both crashes, but the paddles were different: the red paddle had less mass, while the purple paddle had more mass. Use the information in the diagram to answer.
In which crash did the puck experience a stronger force?
Crash 2
500
force
a push or a pull that can change the motion of an object
500
velocity
speed in a particular direction
500
True or False?
If a different strength force is exerted on two objects but the objects have different masses, the object with less mass will have a greater change in velocity.
False
If the same strength force is exerted on two objects but the objects have different masses, the object with less mass will have a greater change in velocity.
500
Juno, Melissa, and Anna have skateboards that are the same mass. They were playing with their skateboards on a flat street when another skateboard came along and bumped their skateboards, but not from the same direction. Each skateboard changed speed as a result of being bumped. Use the information in the diagram to answer.
Which skateboard(s) experienced the strongest force when bumped?
green skateboard