What is the formula for speed?
Speed = distance/time
What period of time was the toy car moving the fastest?
From 6-8 seconds
What are the two things needed for velocity?
Speed and direction
Rowing a boat forward requires a force that will overcome friction from water and wind. Which factor most helps overcome the forces working against the boat?
A. the length of the boat
B. the height of sides of the boat
C. the weight of the rowers in the boat
D. the number of people rowing in the boat
D
If this ball moves east, which arrow represents the unbalanced force acting on it?
------->
Anna ran 100 meters in 25 seconds. What was her average speed?
4m/s
What segment of the graph was the car parked?
B
Which information does a student need to differentiate between the speed and the velocity of a vehicle in motion?
A. the rate of the motion
B. the direction of the motion
C. the change in the amount of motion
D. the amount of distance traveled during motion
B
Describe the motion of the box
It will stay still
Describe the motion of the box
The forces are unbalanced- it will move to the left with 40N of force
A bus traveled 280 kilometers between two cities. It left the first city at 3:00 p.m. and arrived at the second city at 7:00 p.m. What was the average speed of the bus during the trip?
70km/hr
What is this helicopter's average speed?
2.5km/min
A 0.20 kg softball travels 97 meters (m) south for 4.5 seconds (s). What piece of information distinguishes the velocity from the speed of the ball?
The ball went south
When the net force of opposite forces is zero, the forces are
balanced
D
Students observed a turtle in the schoolyard. They measured the distance that the turtle traveled in 30 minutes. If the turtle walked 40 meters in that time, what was its average speed in meters per hour?
80
If this boat continues at a constant speed- how far will it go in 15hours
15km
A student ran around a circular track. Which statement best describes the motion of the student while running?
A. The speed was constant.
B. The velocity was constant.
C. The speed was always changing.
D. The velocity was always changing.
D- velocity changes with direction
Which are balanced?
•An elevator traveling towards the fifth floor
•A picture frame on a wall
•A person sitting on a couch
•A cellphone dropping on the floor
•A basketball going through a hoop
•A toy car rolling down a ramp
Picture frame, and person sitting
What is the robot's displacement and total distance?
Total distance= 24
Displacement= 0
An airplane travels a distance of 4,000 km from New York to Los Angeles in 5 hours. What is the numerical value for the average speed of the airplane.
800
What is the average speed for both girls
Tisa= 6m/s
Lily= 7.5 m/s
1 and 4
What is the net force and is the balanced or unbalanced?
5N to the right and unbalanced
Describe what is happening from 6-8 seconds
The speed is decreasing