Describing Motion
Measuring Motion
Changes in Motion
Graphing Motion
Newton's Laws
100
The measurement of an object in relation to time and distance.
Is this:
a) velocity
b) speed
c) distance
b) Speed
100
What is the correct formula for calculating speed?
a) speed = distance - reference point
b) speed = displacement / time
c) speed = distance / time
c) Speed = Distance/Time
100
What is the formula for calculating acceleration?
a) acceleration = final velocity - initial velocity / time
b) acceleration = total velocity / distance
c) acceleration = change in speed / time
a) Acceleration = Final velocity - Initial velocity / Time
100
Look at the graph showing a car trip. Choose the part of the trip in which the car was traveling at the slowest rate.
Part iv
100
What is inertia?
A tendency to do nothing or to remain unchanged
200
A measurement of magnitude or distance and direction.
A vector
200
The formula for velocity
Displacement/Time or V = d / T
200
The measurement of an objects accumulation of speed from one point to another.
Acceleration
200
The graph represents this.
Increasing speed (positive acceleration)
200
A sprinter pushes back on the starting blocks as the race begins. The starting blocks push forward on the sprinter.
What law is this describing?
Third Law
300
A quickest path between a start position and an end position.
Displacement
300
What is the difference between speed and velocity?
Velocity has a direction.
300
A car travels 20 km/h for 10 minutes then 60 k/m per hour for 30 minutes. What type of speed is this describing?
Instantaneous speed
300
The graph represents this.
Decreasing speed
300
True or false?
The lesser the force applied the greater the distance an object will move.
False
400
A measurement of distance or magnitude.
Scalar
400
A man walks 50 meters to his house and then turns and walks halfway back. The whole trip took 3 seconds. What is his average speed?
25 m/s
400
Andie takes 20s to walk briskly for 10m. What was her speed?
0.5 m/s
400
A ball is thrown vertically into the air. When the graph touches the x-axis, this is happening.
The ball stops rising in the air and begins to fall.
400
A force of 250 N is applied to an object that accelerates at a rate of 5 m/s2 . What is the mass of the object?
250N=(m)5 m= 50kg
500
12 km/hr = _____ m/s
43.2 m/s
500
A kid runs 60 meters to his friend's house and then turns and runs halfway back. The whole trip took 6 seconds. What is his average velocity?
5 m/s
500
Yianni leaves Singapore at 8am for Kuala Lumpur, which is 384 km away. If he reaches his destination at 4pm, calculate his speed first in km/h and then in m/s.
48 km/hr -->13.3 m/s
500
At what point in the graph is there constant increasing speed
A, C, & E
500
A 5700g shot put is launched with 32N of force. Calculate the acceleration of the shot put. Answer to two decimal points.
6.5 m/s/s