Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
100
Displacement can never be greater than the distance traveled
True
100
A ball is thrown horizontally from a tall building. What will happen to the ball’s horizontal velocity as it falls?
It will remain constant.
100
If you push a wall with a force of 10 N, how much force does the wall exert on you?
10 N in the opposite direction
100
In a frictionless environment, when an object with an initial velocity slides down a ramp, what happens to the potential energy as it is converted to kinetic energy?
The potential energy lost is completely converted into kinetic energy.
100
In this type of collision, objects stick together after impact.
Perfectly inelastic collision
100
When the speed of an object in circular motion doubles, its centripetal acceleration will do this.
Increase by a factor of 4
100
A ladder rests against a wall, making an angle with the ground with friction. If the wall is frictionless, what force is essential to prevent the ladder from slipping?
The frictional force at the ground prevents slipping.
100
How does the cross-sectional area of a pipe affect the velocity of a fluid?
The velocity increases as the cross-sectional area decreases.
100
When the temperature of a gas is halved while keeping the pressure constant, what happens to the volume of the gas according to the ideal gas law?
The volume of the gas halves
100
What happens during a phase change in terms of energy transfer?
This occurs when a substance absorbs or releases energy without changing its temperature, typically during phase changes.
200
A car accelerates from rest at 4 m/s² for 3 seconds, then decelerates at 2 m/s² for 4 seconds. What is the total displacement of the car?
50 meters
200
A tennis player hits a tennis ball with a speed of 45.0 m/s at an angle of 30.0º above the horizontal. The ball is hit from a position 1.0 m off the ground. It hits a fence 2.80 seconds after it was hit. What maximum height did the ball reach during its flight?
26.8 m
200
A 2 kg object is at rest on a frictionless surface. A 15 N force is applied at an angle of 60° above the horizontal. What is the horizontal acceleration?
3.75 m/s2
200
An object is moved 10 m in the direction of a 50 N force. If the force is applied at an angle of 30° to the direction of motion, how much work is done?
433 J
200
A 5 kg object moving at 10 m/s collides with and sticks to a stationary 2 kg object. What is the final velocity of the combined objects?
7.14 m/s
200
A 1000 kg car travels on a road at a speed of 20 m/s. Calculate the normal force exerted by the road at points A and B if the radius of curvature is 100 m.
A = 13800 N, B = 5800 N
200
A seesaw is balanced at its pivot point in the center. On one side, a child weighing 30 kg sits 2 meters from the pivot. How far from the pivot should a second child, weighing 45 kg, sit on the opposite side to keep the seesaw balanced?
1.33 m
200
A hydraulic press has a large piston with a diameter of 1 meter and a small piston with a diameter of 0.1 meter. If a force of 500 N is applied by the small piston, calculate the force exerted by the large piston.
50,000 N
200
A steel rod has a length of 6.0 m at 15°C. If the temperature increases to 80°C, by what percentage does the length of the rod change? (The coefficient of linear expansion for steel is 1.1×10-5 C-1)
0.0715%
200
A 100 g piece of aluminum is heated to 90°C and then placed in 150 g of water at 20°C. If the final temperature of the system is 25°C, what is the specific heat capacity of aluminum? (The specific heat capacity of water is 4.18 J/g°C).
0.482 J/g°C
300
A ball is thrown upward with a velocity of 30 m/s. How long does it take to reach the top of its motion, and what is the total time it takes to return to the ground?
What is 3.06 s to reach the top and 6.12 s total time?
300
A ball is launched horizontally from a 20-meter-high cliff at 15 m/s. How long does it take to hit the ground, and how far does it travel horizontally?
2.02 s and 30.3 m.
300
A 48 kg student travels up in an elevator at an acceleration of 2 m/s2. The student is standing on a scale that measures Newtons of force. What will the scale read?
566.4 N
300
A 600 kg roller coaster car is at rest at the top of a hill that is 60 meters high. It descends to a height of 20 meters. Assuming no friction, calculate the speed of the car at the 20-meter height.
28 m/s
300
A golf ball and a putty ball of equal mass are thrown at a wall. The golf ball bounces back, while the putty ball sticks to the wall. Which ball imparts a greater impulse to the wall?
The golf ball imparts a greater impulse.
300
A 750 kg car makes a circular turn of a radius of 20 m. The coefficient of static friction between the tires and the road is 0.60. What is the maximum speed at which the car can safely make the turn without sliding?
10.8 m/s
300
A 5 kg mass is 0.5 m from the pivot point on a seesaw. What torque is produced?
24.5 N
300
A rectangular block of wood has a mass of 175 kg and the dimensions of the block are 50 cm x 75 cm x 80 cm. The block of wood is placed at the bottom of a tank filled with water. Calculate the acceleration of the block.
7 m/s
300
A gas occupies a volume of 2.0 m³ at 300 K and 100 kPa. What is the pressure if the temperature increases to 600 K, while the volume remains constant?
200 kPa
300
A 200 g block of ice at -5°C is placed in a container with 600 g of water at 60°C. Will all the ice melt?
Yes