Kinematics
Free Fall
Forces and Friction
Hodge Podge
Projectile Motion
100
In a velocity vs time graph, the slope of the graph is the
Acceleration
100

What is the magnitude of acceleration of falling objects on Earth?

9.8

100

An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is _____________.

same

100

A racecar is doing laps around a circular track of radius 50 m. When the car has traveled halfway around the track, what is the car's displacement?

100 m

100

A football is kicked at an angle 35 degrees with respect to the horizontal. Which one of the following statements best describes the acceleration of the football during this event if air resistance is neglected? A)The acceleration is 0 m/s2 at all times. B)The acceleration is 9.8 m/s2 at all times. C)The acceleration is zero when the football has reached the highest point in its trajectory. D)The acceleration is positive as the football rises, and its is negative as the football falls. E)The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground.

B)The acceleration is 9.8 m/s2 at all times.

200

A marble accelerates from rest at a constant rate and travels for a total displacement of 44 m in 20.0 s. What is the average velocity of the marble?

2.2 m/s

200
A ball is thrown straight up at 10 m/s. At the top of its path its speed is ________________
0
200

The law that states that every object maintains constant velocity unless acted on by an unbalanced force is

Newton's First Law

200
Which one of the following quantities is a vector quantity? A) the age of the earth B) the mass of a football C) the earth's pull on your body D) the temperature of an iron bar E) the number of people attending a baseball game
C
200

Two bullets are simultaneously fired from a gun and dropped from the same height. The bullet that is shot leaves the gun at 3200 m/s. Which bullet, the dropped or one fired from the gun, hit the ground first? 

They hit the ground at the same time

300

A car travels a circular track with radius 100 m. If it goes around exactly one time, what is the displacement of the car?

0

300

A ball is dropped from a 70 m tall tower. How long will it take the ball to hit the ground?

3.78 s

300

Two individuals are on skateboards facing each other. John has a mass of 100 kg and pushes on Frank. If Frank has a 50 kg and accelerates away at 4 m/s after he is pushed, what is Johns acceleration?

2 m/s

300

A 40 N applied force is to an object experience 15 N of frictional force. If the object has a mass of 20 kg, what is the acceleration of the object? 

1.25 m/s2

300

An object thrown horizontally from the top of a 25.00-m cliff lands a distance of 40.00 m away. What is the initial horizontal velocity?

17.7 m/s

400

A soccer ball is kicked horizontally. If its average speed is 2.63 m/s what is its displacement after 4.00 seconds?

10.52 m

400
A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. How much time elapses between the throwing of the ball and its return to the original launch point?
4 s
400

A 3 kg box is pushed on a horizontal surface. It moves on the surface with an acceleration of 0.27 m/s2. Calculate the applied force that must be acting on the box.

0.81 N

400

An object with an initial velocity of 2.0 m/s undergoes a constant acceleration of 3.0 m/s2. What is the object's displacement after 4.0 s?

32 m

400

An arrow is shot horizontally from a height of 4.9 m above the ground. The initial speed of the arrow is 45 m/s. Neglecting friction, how long will it take the arrow to hit the ground?

1.0 s

500

A racecar has a speed of 80 m/s when the driver releases a drag parachute. If the parachute causes a deceleration of 4 m/s2, how far will the car travel before it stops?

800 m

500

Water drips from rest from a leaf that is 20 meters above the ground. Neglecting air resistance, what is the speed of each water drop when it hits the ground?

19.8 m/s

500

The coefficient of kinetic friction between a 25 kg crate and the floor is 0.45. How much force is required to keep the crate moving at a steady speed across the floor?

110.25 N

500

What is the equation for Newton's Law of Universal Gravitation? 

FG = G * m1 * m2 /r2

500
A shell is fired with a horizontal velocity from the top of an 80 m high cliff. The shell strikes the ground 1330 m from the base of the cliff. Determine the initial speed of the shell.
330 m/s
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