AnswersFL-0708340-Spanish 1 LMSShopping Part 3

Shopping Review and Quiz Answers

159 verified answers3 views
141
Free Preview

An object has a mass of 5 kg. What force is needed to accelerate it at 6 m/s2? (Formula: F=ma)

A
0.83 N
B
1.2 N
C
11 N
D
30 N
142
Free Preview

Henry can lift a 200 N load 20 m up a ladder in 40 s. Ricardo can lift twice the load up one-half the distance in the same amount of time.Which comparison between Ricardo and Henry is correct?

A
Ricardo exerted a greater force, did the same amount of work, and had the same power output as Henry.
B
Ricardo exerted a greater force, did the same amount of work, and had a greater power output than Henry.
C
Ricardo exerted a greater force, did less work, and had a lower power output than Henry.
D
Ricardo exerted a smaller force, did more work, and had the same power output as Henry.
143

Which statement best describes the work and energy in these examples?Example 1: Running a car requires gas.Example 2: Humans require food to live.

A
The gas and food are examples of energy.
B
The gas and food are examples of work.
C
The gas and humans are examples of work.
D
The food and car are examples of energy.
144

The diagram shows a ball resting at the top of a hill.

Question illustration
A
The potential energy in the system is greatest at X.
B
The kinetic energy in the system is greatest at X.
C
Total energy in the system decreases as the ball moves from X to Y.
D
Total energy in the system increases as the ball moves from X to Y.
145

A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A blue line runs straight across at 2 units on the vertical axis for all horizontal axis values.

Question illustration
A
initial = 0 m/s; final = 2.5 m/s
B
initial = 2.5 m/s; final = 2.5 m/s
C
initial = 3.0 m/s; final = 6.0 m/s
D
initial = 6.0 m/s; final = 3.0 m/s
146

A bicycle has a momentum of 36 kg • m/s and a velocity of 4 m/s. What is the mass of the bicycle?

A
9 kg
B
32 kg
C
40 kg
D
144 kg
147

Which example best represents balanced forces?

A
an elevator stopped on the third floor
B
a basketball shot into a hoop
C
a sled sliding down a snowy hill
D
a tow truck pulling a car out of a ditch
148

Which would be represented by FN on a force diagram?

A
Northern Force
B
Newton Force
C
Normal Force
D
Negative Force
149

The resulting net force of an object is represented below. →10 NWhich most likely represent the forces acting on the object?

A
↑ 63 N and ↓ 73 N
B
↑ 97 N and ↓ 87 N
C
← 63 N and → 73 N
D
← 97 N and → 87 N
150

A toy car is placed at 0 on a number line.It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the left. What is the total distance the toy car traveled?

Question illustration
A
1 cm
B
5 cm
C
11 cm
D
19 cm
151

is the displacement of an object during a specific unit of time.

Answer not available
152

Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is sometimes difficult at first for people to understand.

A
A rolling ball eventually slows down and comes to a stop.
B
A wagon must be pushed before it begins to move.
C
The heavier the load in a cart, the harder the cart is to turn.
D
A box does not move when pushed equally from opposite sides.
153

Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?

A
velocity
B
mass
C
momentum
D
direction
154

Which refers to the sum of all the forces that act upon an object?

A
absolute force
B
net force
C
positive force
D
balanced force
155

Anya knows the velocity of an object. What else does she need to know in order to find the object’s momentum?

A
its mass
B
its height
C
its density
D
its speed
156

A skydiver falls toward the ground at a constant velocity. Which statement best applies Newton’s laws of motion to explain the skydiver’s motion?

A
An upward force balances the downward force of gravity on the skydiver.
B
The skydiver’s inertia is zero, which no longer allows for acceleration.
C
An unbalanced force pulls the skydiver toward the ground.
D
The mass of the skydiver is so great that there is no acceleration.
157

What is most often given a value of zero to describe an object’s position on a straight line?

A
displacement
B
reference point
C
distance
D
ending location
158

Which change will cause the gravitational force between a baseball and a soccer ball to increase?

A
removing the outer layer of the baseball
B
moving the balls farther apart
C
wrapping the soccer ball in layers of duct tape
D
using a baseball with a thinner leather
159

Which statement correctly describes gravity?

A
an attractive force that acts between all objects through contact
B
an attractive force that acts between all objects without contact
C
a repulsive force that acts between all objects through contact
D
a repulsive force that acts between all objects without contact

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Medical Words Review and Quiz

Quiz
25 verified answers

Travel Review and Quiz

Quiz
25 verified answers

Computers (part 1) Review and Quiz