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**Circular**Motion Free Fall Newton’s Laws Projectile Motion Misc. 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt**Centripetal acceleration means…?**“center-seeking”**All circular motion has acceleration directed towards…?**Answer**All circular motion has acceleration directed towards…?**The center of motion**The acceleration of an object in circular motion does not**depend on…? Answer**The acceleration of an object in circular motion does not**depend on…? mass**All objects in circular motion move faster on the edge of**the circle or in the middle? Answer**All objects in circular motion move faster on the edge of**the circle or in the middle? The edge**The equation for centripetal force is just which equation**re-written? Answer**The equation for centripetal force is just which equation**re-written? Newton’s Second Law**This is the only force acting on objects in freefall?**Answer**This is the only force acting on objects in freefall?**Gravity**Astronauts in space are freefalling constantly. T or F.**Answer**Astronauts in space are freefalling constantly. T or F.**True**All objects in freefall have the same speed. T or F.**It depends on if there is air resistance or not.**In 10 words or less, list the three laws of motion.**1st: objects in motion, stay in motion, etc.**The equation for weight is a rearranged form of Newton’s**First Law. Answer**The equation for weight is a rearranged form of Newton’s**First Law. No, 2nd Law.**Explain Newton’s 2nd Law in words.**A net force on a mass causes and acceleration.**The recoil of gun is explained by Newton’s 1st Law. T or**F. Answer**The recoil of gun is explained by Newton’s 1st Law. T or**F. F, Newton’s 3rd Law.**The vertical speed of a projectile never changes.**False, it is always accelerating.**What is the equation for the horizontal component of a**projectile? Answer**What is the equation for the horizontal component of a**projectile? Vx = v0 cosθ**What is the definition of a projectile?**Any object that is kicked, shot, or thrown and acted upon by gravity.**What is the relationship between vertical velocity and**horizontal velocity of a projectile? Answer**What is the relationship between vertical velocity and**horizontal velocity of a projectile? They are independent of each other**Which is bigger: a mile or a kilometer?**A kilometer**What charge does a proton have?**Positive**Why is the sky blue?**Answer**Why is the sky blue?**Because of the diffraction of sunlight through the atmosphere.