Force
What is a push or pull that can cause a change in motion?
Force
Speed is…
how fast something is traveling
What is speed in a particular direction?
velocity
The amount of matter in an object is called its…
mass
What is required to change the velocity of an object?
a force
How are speed and velocity different?
speed is how fast something is traveling
velocity includes both speed and direction
If the same strength force is exerted on two objects, why might they be affected differently?
they might have different masses
How an object changes velocity depends on these three things
the direction of the force exerted on the object.
the strength of the force exerted on the object.
the mass of the object.
If an object starts going in the opposite direction after experiencing a force, in what direction must the force have been exerted?
The opposite direction as the object's initial motion.
When two objects collide, the forces on each object are exerted in how much strength and in what direction(s)?
the same strength and in opposite directions
If the same strength force is exerted on two objects, but the objects have different masses, which object will have a GREATER change in velocity?
the object with LESS mass will have a greater change in velocity
When two objects collide, the two forces exerted on each object are...
the same strength.
If an object that was motionless starts moving, in what direction must the force have been exerted?
in any direction
When two objects collide, their changes in velocity might be different because…
they might have different masses
If the same strength force is exerted on two objects, but the objects have different masses, which object will have a SMALLER change in velocity?
the object with MORE mass will have a smaller change in velocity
When two objects collide, the forces on each object are exerted in...
opposite directions
When two objects collide, a force is exerted on each object. (T or F)
true
Based on the evidence (mass of pod = 1,100 kg and mass of space spation = 415,400 kg)
how does the direction of the space station's motion compare with the direction of the pod's?
The pod is moving in the opposite direction as the space station.
Based on the evidence, (mass of pod = 1,100 kg and mass of space station = 415,400 kg)
how does the speed of the space station's motion compare with the speed of the pod's?
The pod is moving faster than the space station.
Dr. Gonzales gave us evidence that the pod was MORE MASSIVE than usual, but the strength of the thruster FORCE was THE SAME as in other missions. Based on this evidence, which claim is correct?
claim 1 - the thrusters caused the pod to change direction
claim 2 - the thrusters only slowed the pod, causing it to bump into the space station
The thrusters only slowed the pod, it didn’t stop. The pod hit the space station, which made it bounce and move in the opposite direction.