Test: Friday January 12th Motion Test Review Test: Friday January 12th

Question #1 When a car suddenly stops, the objects in the backseat are thrown forward. This is due to __________. Gravity Inertia Friction between the person and the car Equilibrium

Question #1 When a car suddenly stops, the objects in the backseat are thrown forward. This is due to __________. Gravity Inertia Friction between the person and the car Equilibrium

Question #2 Which of Newton's Laws describes the relationship between the mass and force? Newton’s 3rd Law Newton’s 1st Law Newton’s 2nd Law Newton’s 4th Law

Question #2 Which of Newton's Laws describes the relationship between the mass and force? Newton’s 3rd Law Newton’s 1st Law Newton’s 2nd Law Newton’s 4th Law

Question #3 I am one of Newton's Laws that always involves two objects and two forces. Which Law am I? 1st Law 2nd Law 3rd Law

Question #3 I am one of Newton's Laws that always involves two objects and two forces. Which Law am I? 1st Law 2nd Law 3rd Law

Question #4 During a recent baseball game a batter hit a baseball with a force of 600 N. What is the acceleration of the baseball if the baseball has a mass of 0.3 kg? 2,000 m/s2 200 m/s2 180 m/s2 180 m/s

Question #4 During a recent baseball game a batter hit a baseball with a force of 600 N. What is the acceleration of the baseball if the baseball has a mass of 0.3 kg? 2,000 m/s2 200 m/s2 180 m/s2 180 m/s

Question #5 Which of the following best describes the motion of the object based on the free-body diagram shown? At rest Moving at constant speed Accelerating to right with net force of 23 N Accelerating to right with net force of 17 N

Question #5 Which of the following best describes the motion of the object based on the free-body diagram shown? At rest Moving at constant speed Accelerating to right with net force of 23 N Accelerating to right with net force of 17 N

Question #6 If a book is sitting on a table at rest, which of the following is false about the motion of the book? The book is in static equilibrium The book has unbalanced forces acting on it The book is experiencing action/reaction forces The book is following Newton’s 1st Law of Motion

Question #6 If a book is sitting on a table at rest, which of the following is false about the motion of the book? The book is in static equilibrium The book has unbalanced forces acting on it The book is experiencing action/reaction forces The book is following Newton’s 1st Law of Motion

Question #7 Which one(s) of the following force diagrams depict an object moving to the right with a constant speed?

Question #7 Which one(s) of the following force diagrams depict an object moving to the right with a constant speed?

Question #8 According to Newton's third law, every force is accompanied by an equal and opposite reaction force. The reason that these forces do not cancel each other is ____. The action force acts for a longer time period The two forces are not always in the same direction One of the two forces is greater than the other The two forces act upon different objects; only forces on the same object can balance each other. They do cancel each other. Objects accelerate because of the presence of a third force.

Question #8 According to Newton's third law, every force is accompanied by an equal and opposite reaction force. The reason that these forces do not cancel each other is ____. The action force acts for a longer time period The two forces are not always in the same direction One of the two forces is greater than the other The two forces act upon different objects; only forces on the same object can balance each other. They do cancel each other. Objects accelerate because of the presence of a third force.

Question #9 The amount of net force required to keep a 5-kg object moving rightward with a constant velocity of 2 m/s is ____. 0 N 0.4 N 2 N 2.5 N

Question #9 The amount of net force required to keep a 5-kg object moving rightward with a constant velocity of 2 m/s is ____. 0 N 0.4 N 2 N 2.5 N

Question #10 If a boat starts from rest and speeds up at 6.20 m/s2 for 8 seconds, what final speed will the train end up at? 0.775 m/s 1.29 m/s 49.6 m/s 8.0 m/s

Question #10 If a boat starts from rest and speeds up at 6.20 m/s2 for 8 seconds, what final speed will the boat end up at? 0.775 m/s 1.29 m/s 49.6 m/s 8.0 m/s

Question #11 An object starts from rest and accelerates at a steady 7.50 m/s2. How far does it travel in the first 2.0 s? 1.5 m 15 m 0.27 m 3.75 m

Question #11 An object starts from rest and accelerates at a steady 7.50 m/s2. How far does it travel in the first 2.0 s? 1.5 m 15 m 0.27 m 3.75 m

Question #12 If it takes an 40 N force to speed up an object from 0 m/s to 15 m/s in just 5 seconds, what is the mass of this object? 20 kg 8 kg 13.3 kg 2.67 kg

Question #13 A car’s speed decreased uniformly from 60 m/s to 30 m/s in 5 seconds. Calculate the car’s acceleration. 6 m/s; speeding up -6 m/s; slowing down 12 m/s; speeding up -12 m/s; slowing down

Question #13 A car’s speed decreased uniformly from 60 m/s to 30 m/s in 5 seconds. Calculate the car’s acceleration. 6 m/s; speeding up -6 m/s; slowing down 12 m/s; speeding up -12 m/s; slowing down

Question #14 How confident do you feel for the test tomorrow? Not confident Somewhat confident Moderately confident Very confident