20 questions
These forces are...
Balanced
Unbalanced
Which of the following is an example of an unbalanced force?
1
2
3
All of the above
1
2
3
All of the above
A 20 kg bike accelerates at 10 m/s2. What is the force acting upon it?
F = MA
25 N
20 N
200 N
10 N
What is the formula for speed?
D = S x T
T = D / S
S = D / T
S = D x T
If the distance is 50 meters and the time is 5 seconds, what is the average speed?
S = D / T
D = S x T
T = D / S
5 m/s
25 m/s
10 m/s
50 m/s
What is Newton's First Law
F=ma
Every action has an equal and opposite reaction
An object at rest stays at rest, an object in motion stays in motion unless an outside force is acted upon it
Friction
What is this?
"This airplane is traveling at 500 mph, West"
Speed
Velocity
Acceleration
What is this?
"This car is speeding up"
Speed
Velocity
Acceleration
What is this?
A car is traveling 50 mph.
Speed
Velocity
Acceleration
What is happening at A?
stationary (no motion)
accelerating
slower steady speed; moving away from the starting position
steady speed; returning to start position
Match the description to the graph:
"The car is stopped (stationary)."