Balanced or Unbalanced?
Pushing a sled
What is an unbalanced force?
What is Newton's first law of motion?
A force is a _______
a) push
b) pull
c) both of these
What is both of these?
Knowing an object's position requires which of the following?
a. speed
b. time
c. displacement
d. reference point
What is a reference point?
Ms. O'Connell sprinted down the hallway for a science fair project. She ran a total of 60 meters in 20 seconds. What was her average speed?
What is 3 m/s?
Book resting on a table
What is balanced?
What is Newton's Second Law of Motion?
A force that occurs when two objects are physically touching each other.
What is a contact force?
Who developed the three laws of motion?
What is Sir Isaac Newton?
What is the speed of an object that travels 40 meters in 5 seconds?
What is 8 m/s?
A rocket launching
What is unbalanced?
If you kick a soccer ball, it will eventually stop due to friction. Which law would be an example of this?
What is Newton's first law of motion?
Which of the following is NOT true of gravitational force?
a. noncontact
b. depends on mass
c. depends on speed
d. distance
What is depends on speed?
Motion can be described through a change in ______.
a. speed
b. distance
c. position
d. time
What is position?
A cyclist rides 45 kilometers east in 5 hours. What is the cyclist's velocity?
What is 9 km/hr east?
A car cruising at constant speed.
What is balanced?
In a rocket, hot gases are released downward and an equal upward force pushes the rocket forward. Which law would be an example of this?
What is Newton's Third Law of Motion?
Gravity is an example of which kind of force?
What is noncontact?
What explains why objects resist changes in their state of motion?
a. Gravity
b. Inertia
c. Force
d. Friction
What is Inertia?
What is the velocity of a car that traveled 80 kilometers North in 2 hours?
What is 40 km/hr North?
Magnet repelling or attracting objects
The heavier an object, like a rock, the more force needed to move it than a lighter object. This would be an example of which law?
What is Newton's Second Law of Motion?
A force depends on what two factors?
What is magnitude and direction?
What is acceleration?
What is speed and direction?