Forces in Motion Vocab
The speed of an object in a particular direction
Velocity
A man traveled 150 miles in 2.5 hours. What was his speed?
60 mph
Calculate the average speed as well as graph the points.
Distance Time
80 m 1 min
190 m 2 min
300 m 3 min
Graph Points.
95 m/min
Newton's First Law states -
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless the object is acted upon by an unbalanced force.
The way an object would go to move from a starting reference point to the next point along a path
Direction
A measure of how fast something moves; rate of motion
Speed
A woman travelling 75 miles per hour went a distance of 200 miles. How long did it take her?
2.6 hours
Calculate the average speed as well as graph the points.
Distance Time
35 in 1 sec
80 in 2 sec
140 in 3 sec
Graph points.
42.5 in/sec
Another name for Newton's first law?
Law of Inertia
An unbalanced force that causes items to be pulled toward the center of the Earth
Gravity
The act of an object changing position
Motion
A dog ran at approximately 10 meters per second for 28 seconds. How far did the dog get?
280 meters
Calculate the average speed as well as graph the points.
Distance Time
110 cm 1 sec
240 cm 2 sec
340 cm 3 sec
Graph points.
115 cm/sec
What is Inertia?
The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction
The force that opposes motion between two materials that are in contact
Friction
The change in position of an object relative to a starting reference point
Displacement
Coach Nava was being chased by a bear. Luckily he came across a car and was able to escape. He then travelled North in his car for 80 miles to the nearest in roughly 1.5 hrs. What would be Coach Nava's velocity if he were to travel back south at the same rate?
53.3 mph South
- 53.3 mph
Calculate the average speed as well as graph the points.
Distance Time
70 ft 3 sec
150 ft 6 sec
230 ft 9 sec
290 ft 12 sec
Graph points.
24.6 mph
A rope is being pulled on in opposite directions with both forces using the same magnitude of force. These forces are known as -
Balanced forces
A box on a ramp is moving down the ramp at a constant velocity. The forces are -
(balanced or unbalanced)
Balanced
The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction
Inertia
Calculate the average speed of the object using the information below:
Distance Time
50 m 1 hr
110 m 2 hr
180 m 3 hr
240 m 4 hr
58 mph
Calculate the average speed as well as graph the points.
Distance Time
120 mi 2 hr
250 mi 4 hr
410 mi 6 hr
535 mi 8 hr
Graph points.
65.75 mph
A golf ball is placed on a golf tee. The ball is then hit with a club before coming to a stop after landing in some mud. In which moment(s) are the forces on the golf ball balanced?
On the tee.
In the mud.
The information needed to calculate the speed of a moving object
Distance
Time