WorksheetsProjectile Motion & Components
Total questions: 12
Worksheet time: 4mins
An object is launched horizontally. Which of the following is true about the horizontal motion? Select two.
a=10 sm per second down
a=0
v0=0
v is constant
How do you know an object is in freefall?
The object is falling.
The object has air resistance.
The only force present is the force of gravity.
The object is moving upward in the air.
An object is dropped. Which of the following is true about the vertical motion? Select two.
a=10 sm per second down
a=0
v0=0
v is constant
An object is launched horizontally. Which of the following is true about the vertical motion? Select two.
a=10 sm per second down
a=0
v0=0
v is constant
What is the best method to approach a projectile motion problem?
Check the units of the answers.
Create two kinematics charts: one vertical one, horizontal.
Pick an equation.
Use velocity divided by time.
To find the x-component of velocity V that is angled above the horizontal an angle θ, which equation should you use?
V cosθ
V sinθ
cosθ
sinθ
To find the y-component of velocity V that is angled above the horizontal an angle θ, which equation should you use?
V cosθ
V sinθ
cosθ
sinθ
To find the component of gravitational force going down an incline of angle θ, what equation should be used?
mg cosθ
mg sinθ
cosθ
sinθ
When an object is on an incline of angle θ, what does the normal force always equal?
mg cosθ
mg sinθ
cosθ
sinθ
Given horizontal Tension of a string, Tx, and vertical Tension of a string, Ty, how do you find the total Tension?
Add them.
Subtract them.
Use Pythagorean theorem.
Use trig functions.
What is always the first step to solving force problems?
Break any angled forces into components.
Set up two equations.
Pick an answer.
Draw a free body diagram.
True or False: If you need to find acceleration of multiple object system, simply analyze all external forces.
True
False
