Forces
Speed/Acceleration
Motion
Balanced, Unbalanced & Net Forces
Random
100
When is friction needed during the course of motion?
What is to slow down motion?
100
n the first race, a runner ran 2,000 meters at a speed of 6 meters/min. During her second race, she ran another 2,000 meters at a slower speed. Which statement is true?
A) The first race took longer than the second race
B) The second race took longer than the first race
C) The second race took longer than the first race
D) Both races took exactly the same amount of time
What is C?
100
This graph shows the motion of an object.
How long did it take the object to travel to a position of 30 meters?
What is 3 seconds?
100
The picture below shows two people pulling on a rope.
If the left side were to drop the rope while the right kept pulling, what would be the result?
What is a greater pulling force to the right?
100
A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop.
What force causes the block to slow down?
What is Force of Friction?
200
Michael is using a 2 pound ball and a 4 pound ball in an experiment.
He kicks the two objects with the same amount of force and thinks the heavier ball will go farther. Is he correct and why?
No, he is incorrect because the lighter ball has less mass, so it will travel farther.
200
How long will it take a car that is moving at 60 miles per hour to travel 120 miles? (speed = distance / time)
What is 2 hours?
200
The graph below displays the motion of an object.
Which statement best describes the motion of the object from minute 25 to 60 seconds?
What is the object is not moving?
200
The teachers chair has wheels. It sits on her classroom floor next to her desk. She pulls the chair away from her desk. What makes the chair move?
What is the force of her pull on the chair?
200
Which one of the following objects has the greatest inertia?
A) ping pong ball
B) a golf ball
C) a soft ball
D) a bowling ball
What is a bowling ball?
300
A mover has to lift a heavy box with a pulley. What force is the greatest to overcome in order to lift the box?
What is gravity?
300
What is necessary to determine the speed of an object?
What is the distance moved by the object and the time it took to move?
300
The graph below shows the motion of a helicopter.
At what time did the helicopter go back to its original position?
What is 10 seconds?
300
A student places a ball on the ground and kicks it. The ball moves along the ground.
Why does the ball move?
The kick applies a contact force (unbalanced) to the ball
300
What is the most likely to increase the speed of an object?
What is applying a stronger force?
400
The force that is acting against you as you try to push a heavy box across the floor.
What is friction?
400
Marcus traveled west for 2 hours at 50 mph. He then traveled east for another hour at 25 mph. How many total miles did Marcus travel? (speed=distance / time)
What is 125 miles?
400
Which terms best describe motion?
What is position and time?
400
A rocket is about to launch. How many Newtons of force would be required in order to counter act gravity and get the rocket off the launch pad if the rocket is lifting off with 500 N of force.
What is 501 Newtons?
400
Which best describes how forces must interact for a sailboat to change direction against water current?
A) The force of the person steering must be greater than the force of the water current
B) The force of the wind must be greater than the force of the water current
C) The force of the wind must be equal to the force of the water current
D) The force of the wind must be less that the force of the water current
What is B?
500
Sometimes machines are used to lower heavy objects from the top of a building to the ground. What force is most responsible for making the object move to the ground?
What is gravity?
500
The graph below represents a traveling car.
If the car continues to travel at a constant speed, what can be predicted about the distance the car will have traveled after two hours?
Play
What is 100 miles?
500
A car traveled 60 miles in one hour, while a bus traveled 120 miles in two hours. What best describes the motion of the vehicles?
- They traveled the same distance
- They traveled at a constant speed
- They traveled in the same direction
- They traveled at the same average speed
What is they traveled at the same average speed?
500
Sally is pulling on a rope to the left with 200N of force and Jane is pulling on the rope to the right with 150N of force, what is the net force acting on the rope?
What is 50N of force to the left?
500
Which best describes how forces must interact in order for dust to settle?
A) The force of gravity must be greater than the force of moving air
B) The force of gravity must be less than the force of moving air
C) The force of gravity must be less than the force of friction
D) The force of gravity must be equal to the force of friction
What is A?