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Motion/ Newtons Physics Review. $100. $100. $100. $100. $100. $200. $200. $200. $200. $200. $300. $300. $300. $300. $300. $400. $400. $400. $400. $400. $500. $500. $500. $500. $500. VELOCITY AND SPEED. Acceleration. Vectors. Momentum And Impulse.
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Velocity and Speed Momentum and Impulse Newton’s 3rd and Friction Vectors Acceleration $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500
CATEGORY 1 - $100 An object moves a distance of 10 m in 5 seconds. The average speed of the object is a 0.5 m/s b 2.0 m/s c 40 m/s d 50 m/s
CATEGORY 1 - $200 A baseball Pitcher throws a fastball at 42 m/s. If the batter is 18 meters from the pitcher, approximately how much time does it take for the ball to reach the batter? a 1.9 s b 2.3 s c 0.86 s d 0.43 s
CATEGORY 1 - $300 As a cart travels around a horizontal circular track, the cart MUST undergo a change in a: velocity b: speed c: inertia d: weight
CATEGORY 1 - $400 What is the distance covered between the 2nd and 6th second? a 8m b 2m c 6 m d 4m
CATEGORY 1 - $500 The average speed of a plane was 600 kilometers per hour. How long did it take the plane to travel 120 km? a: 0.2 h b: 0.5 h c: 0.7 h d: 5 h
CATEGORY 2 - $100 As an object falls freely near the surface of the Earth, its velocity: a: decreases b: increases c : remains the same
CATEGORY 2 - $200 A car starts from rest at 4.0 m/s2 . The car will reach a speed of 28 m/s at the end of: a: 3.5 s b: 7.0 s c: 14 s d: 24 s
Acceleration - $300 A toy projectile is fired from the ground vertically upward with an initial velocity of +29 meters per second. The projectile arrives at its maximum altitude in 3.0 seconds. As the projectile rises and then falls back to the ground, its acceleration a: decreases, then increases b: increases, then decreases c: increase only d: remains the Same
Acceleration - $400 A car moving at a speed of 8.0 meters per second enters a highway and accelerates at 3.0 meters per second2. How fast will the car be moving after it has accelerated for 56 meters? a: 24 m/s b: 20 m/s c: 18 m/s d: 4 m/s
Acceleration - $500 An object, initially at rest, falls freely near the Earth's surface. How long does it take the object to attain a speed of 98 meters per second? a: .1 s b: 10 s c: 98 s d: 980 s
Vectors - $100 Which is a scalar quantity? a: displacement b: velocity c: acceleration d: mass
Vectors - $200 The resultant of two concurrent forces is minimum when the angle between them is: a: 0 b: 90 c: 180 d: 270
Vectors- $300 Two concurrent forces of 40 newtons and X newtons have a resultant of 100 newtons. Force X could be a: 20 b: 40 c: 80 d: 150
Vectors- $400 In the diagram , the weight of a box on a plane inclined at 30.º is represented by the vector W. What is the magnitude of the component of the weight (W) that acts parallel to the incline? 300 W a: .5 W b: .87 W c: 1.0 W d: 1.5 W
Vectors- $500 The handle of a lawn roller is held at 45º from the horizontal. A force, F, of 28.0 newtons is applied to the handle as the roller is pushed across a level lawn, as shown in the diagram below. What is the magnitude of the force moving the roller forward? a: 7.0 N b: 14.0 N c: 19.8 N d: 39.0 N F 450
Momentum and Impulse - $100 What is the momentum of a 30-kilogram cart moving with a speed of 10 meters per second? a: 20 kg-m/s b: 40 kg-m/s c: 3 kg-m/s d: 300 kg-m/s
Momentum and Impulse- $200 What is the momentum of a 1.5 x 103 kg car as it travels at 30 m/s due east for 60s? a: 4.5 x 10 4 kg-m/s, east b: 4.5 x 10 4 kg-m/s, west c: 4.5 x 10 6 kg-m/s, east d: 4.5 x 10 6 kg-m/s, west
Momentum and Impulse- $300 A mass with a momentum of 40. kg-m/s receives an impulse of 30N*s in the direction of its motion. The final momentum of the mass is a:1.3 kg-m/s b:10. kg-m/s c: 70 kg-m/s d:150 kg-m/s
Momentum and Impulse- $400 A 4.0-kilogram mass is moving at 3.0 meters per second toward the right and a 6.0-kilogram mass is moving at 2.0 meters per second toward the left on a horizontal frictionless table. If the two masses collide and remain together after the collision, their final momentum is a:12 kg-m/s b: 7 kg-m/s c: 4 kg-m/s d: 0 kg-m/s
Momentum and Impulse- $500 If the 1.0-kilogram object receives an impulse of +20.0 newton-seconds, what impulse does the 2.0-kilogram object receive? a: 0 N*s b: - 10 N*s c: - 20 N*s d: - 40 N*s
Gravitational and Newton’s 3rd - $100 A 30-kilogram boy exerts a force of 100 newtons on a 50-kilogram object. The force that the object exerts on the boy is a: 500 N b: 30 N c: 100 N d: 0 N
Newton’s 3rd and Friction - $200 A 1-kilogram object rests on a horizontal table top. The force that the table top exerts on the object is a: 1N b: 1 kg c: .1N d: 9.8 N
Newton 3rd and Friction - $300 In order to keep an object weighing 20 newtons moving at constant speed along a horizontal surface, a force of 10 newtons is required. The force of friction between the surface and the object is a: 10 N b: 30 N c: 20 N d: 0 N
The diagram below which represents a 3.0-kilogram mass being moved at a constant speed by a force of 6.0 newtons.The magnitude of the force of friction acting on the mass is Newton’s 3rd and Friction - $400 a: 3 N b: 6 N c: 0 N d: 18 N 6 N force 3 kg 4m
Newton’s 3rd and Friction - $500 The diagram below which represents a 3.0-kilogram mass being moved at a constant speed by a force of 6.0If the surface were frictionless, the 6.0-newton force would produce an acceleration of a: .33 m/s2 b: 2 m/s2 c: 6 m/s2 d: 33 m/s2 6 N force 3 kg 4m
Velocity and Speed - $100 b 2.0 m/s V= d/t =10m / 5s = 2.0 m/s
Velocity and Speed- $200 d 0.43s v = d / t 42 m/s = 18 m / t t =18 m / 42 m/s t = 0.43 s
Velocity and Speed- $300 a: Velocity Velocity has direction in its measurement, circle motion must have a constant change in direction $
Velocity and Speed- $400 d: 4m 6m-2m = 4m
Velocity and Speed- $500 a : 0.2 h v = d / t 600 km /h = 120 km / t t = 120 km / 600 km / h t = . 2 h
Acceleration- $100 b: increases The velocity increases at 9.81 m/s every second!
Acceleration - $200 b: 7.0 s a = v / t 4.0 m/s2 = 28 m/s – 0 m/s / t t = 28 m/s / 4.0 m/s2
Acceleration - $300 d: remains the same All objects fall at a constant acceleration of 9.81 m/s2 unless friction is present
Acceleration - $400 b: 20 m/s Vf2 = Vi2 + 2ad = ( 8m/s )2 + 2 ( 3m/s2 ) ( 56m) = 400 m2/s2 Vf= 20 m/s $
Acceleration - $500 b: 10 s Vf = Vi+ at 98 m/s = 0 m/s + 9.8 m/s2 t 98 m/s = t 9.8 m/s2 10 s = t
Vectors- $100 d: mass Mass has no direction!
Vectors- $200 c: 180 0 The minimum vector addition direction results from opposite direction
Vectors- $300 c: 80 N Adding 80N + 40N =120N Subtracting 80N- 40N = 40N Range 40N-120N contains 100N
Vectors- $400 a: .5 W Ax = A sin q =W sin (300) = .5 W
Vectors- $500 c : 19.8 N Ax = A cos q = 28 N cos (450) = 28 N (.707) = 19.8 N
Momentum and Impuse - $100 d: 300 kg-m/s P=mv = 30 kg ( 10 m/s )
Momentum and Impulse- $200 a: 4.5 x 104 kg-m/s, east p= mv = 1.5 x 103 kg ( 30 m/s ), east = 45 x 103 kg-m/s, east = 4.5 x 104 kg-m/s, east