Definitions
What is a balanced force?
What is
The forces on an object that produce a net force of
0 N.
What is the equation for speed?
What is
Distance / Time
What are the units for speed?
What is
m/s, km/h, mi/h (mph)
What is a force?
What is
A push or a pull exerted on an object.
A motorcyclist travels 800 meters in 20 seconds. What is the motorcyclist's average speed?
What is
40 m/s
What is an unbalanced force?
What is
the net force acting on an object is not 0 N.
(Meaning that the object is in motion)
What is the equation for time?
What is
Distance / Speed
What are the units for time?
What is
Seconds (sec.), Minutes (min.), Hours (hr)
What is the S.I. units for force?
What is
Newton (N)
A student walks 90 meters east for 60 seconds. What is the velocity of the student?
What is
1.5 m/s east
What is the definition of speed?
What is
The distance traveled in a specific amount of time.
What is the equation for distance?
What is
Speed X Time
What are the units for distance?
What is
Meters (m), Kilometers (km), Miles (mi)
What is the definition of net force?
What is
The sum of all forces (the total force) acting on an object.
A helicopter flies at a speed of 300 km/h for 4 hours. How far does it travel?
What is
1,200 km
What is the definition velocity?
What is
The speed of an object in a specific direction
What is the equation for velocity?
What is
Distance / Time with a specific Direction
What are the units for velocity?
What is
m/s (with direction), km/h (with direction), mi/h (with direction).
What type of force causes an object to start moving?
What is
An unbalanced force.
Calculate the time needed for a bus to travel 70 km at a velocity of 40 km/h North.
What is
1.75 hours
What is the definition of acceleration?
What is
The rate at which velocity changes over a specific amount of time.
What is the equation for acceleration?
What is
(Final Velocity - Initial Velocity) / Time
What are the units for acceleration?
What is
m/s^2
A tug-of-war game has 200 N pulling left and 250 N pulling right.
Who wins? What is the net force?
What is
The right side will win. Net force = 50N to the right.
(250N - 200N = 50N to the right)
A lion increases its speed from 8 m/s to 36 m/s in 4 seconds. What is the acceleration?
What is
7 m/s^2