Vocab
A stationary object or place used for comparison to determine if something is moving.
Reference Point
a line that is completely straight with no bumps or curves represents an object moving with this.
Constant Speed
If a runner covers 400 meters in 80 seconds, what is the runner’s speed?
5 m/s
This law states that for every action force, there is an equal and opposite reaction force.
Newton's 3rd Law
The standard unit used to measure force, named after the famous scientist who studied motion.
Newtons
Unequal forces that cause a change in motion.
Unbalanced Force
A flat, horizontal line on a distance-time graph indicates that the object is doing this.
Not Moving
A toy car has a mass of 2 kg and accelerates at 3 m/s². What is the force applied to push the toy car?
6 N
This law states that acceleration depends on the mass of an object and the amount of force applied.
Newton's 2nd Law
A light cardboard box accelerates faster than a heavy wooden box because the cardboard box has less of this property.
Mass
The sum of all forces acting on an object at a specific point in time.
Net Force
This variable is always plotted on the y-axis.
Distance
If a car travels a distance of 150 kilometers in 3 hours, what is its average speed?
50 km/hr
A soccer ball sitting motionless on the grass until a player kicks it is an example of this law in action.
Newton's 1st Law
A dog runs at a speed of 4 m/s for 90 seconds. What is the distance traveled by the dog?
360 meters
The rate at which velocity changes over time, including speeding up, slowing down, or changing direction.
Acceleration
The steepness, or slope, of a line on a motion graph tells you this about the object's movement.
Speed
Maya pulls a rope to the left with 10 N of force while Leo pulls to the right with 6 N. This is the resulting net force and direction.
4 N Left
Newton's 1st Law of Motion is also commonly known by this title.
Law of Inertia
When a car suddenly slams on its brakes, your body keeps moving forward until your seatbelt restrains you. This happens because of this property.
Inertia
The tendency of an object to resist any change in its motion.
Inertia
Draw It! An object starts by moving at a constant speed away from the starting point, and then stops to rest for a moment.
Show Your Whiteboards!
A force of 12 Newtons pushes a box, causing it to accelerate at 4 m/s². What is the mass of the box?
3 kg
A rocket liftoff—where hot gases blast downward and push the rocket upward into the sky—demonstrates this law.
Newton's 3rd Law
Saying a car travels at "60 mph" gives its speed, but saying it travels "60 mph North" gives its this.
Velocity