Week 7: Work and Energy Capabilities

Frage 1 von 10

1

Work is the product of:

Wähle eine der folgenden:

Force x Time
Force x Distance
Energy x Distance
Energy x Time

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Frage 2 von 10

1

Fülle die Lücken, um den Text zu vervollständigen.

A woman carries a 5 kg box of clothes to donate into the shop. If she walks a horizontal distance of 10 meters from her car to the shop door, how much work has gravity done on the box?

First blank is the numerical value. The second blank is for the units.

W =

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Frage 3 von 10

1

Fülle die Lücke, um den Text zu vervollständigen

How much potential energy does a 1 kg textbook have if it is thrown to a height of 5 meters? (Use a value of 10 for the acceleration due to gravity)

U = J

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Frage 4 von 10

1

A book is dropped and slams loudly onto a desktop. Compare the kinetic energy at the bottom to the potential at the top of its motion.

Wähle eine der folgenden:

KE > U
U > KE
KE = U
Need more values

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Frage 5 von 10

1

Fülle die Lücke, um den Text zu vervollständigen

What is the kinetic energy of a 1000 kg car moving at 10 m/s?

KE = J

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Frage 6 von 10

1

In order to life a 1 kg book to a height of 2 m, how much work must be done? Use a value of 10 for the acceleration due to gravity.

Wähle eine der folgenden:

2 J
0.2 J
200 J
20 J

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Frage 7 von 10

1

Fülle die Lücke, um den Text zu vervollständigen

How fast is a 5 kg ball moving the instant before striking the ground after it is dropped from a height of 4 meters?

v = m/s

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Frage 8 von 10

1

A boy pushes a chair with a force of 25 N. If he exerts the force for 2 meters, how much work has he done on the chair?

Wähle eine der folgenden:

25 J
50 J
50 N
12.5 J

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Frage 9 von 10

1

A truck driver is trying to push a 1500 kg loaded truck with an applied force of 5000 N. Unfortunately, his attempt was unsuccessful the truck stays stationary no matter how hard the driver pushes. How much work is done by the driver?

Wähle eine der folgenden:

Zero
F * x
F * t
- F * x

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Frage 10 von 10

1

Two heavy objects collide. Which of the following could be where their initial kinetic energies could be transferred?

Wähle eine oder mehr der folgenden:

Sound
Heat
Friction
Surface Deformation
They exactly cancel each other out
The energies pass through the other car

	Erstellt von Ryan Elwell vor fast 7 Jahre

Work, Energy and the link between the two.

Week 7: Work and Energy Capabilities

Frage 1 von 10

Work is the product of:

Wähle eine der folgenden:

Erklärung

Frage 2 von 10

Fülle die Lücken, um den Text zu vervollständigen.

A woman carries a 5 kg box of clothes to donate into the shop. If she walks a horizontal distance of 10 meters from her car to the shop door, how much work has gravity done on the box? First blank is the numerical value. The second blank is for the units. W =

Erklärung

Frage 3 von 10

Fülle die Lücke, um den Text zu vervollständigen

How much potential energy does a 1 kg textbook have if it is thrown to a height of 5 meters? (Use a value of 10 for the acceleration due to gravity) U = J

Erklärung

Frage 4 von 10

A book is dropped and slams loudly onto a desktop. Compare the kinetic energy at the bottom to the potential at the top of its motion.

Wähle eine der folgenden:

Erklärung

Frage 5 von 10

Fülle die Lücke, um den Text zu vervollständigen

What is the kinetic energy of a 1000 kg car moving at 10 m/s? KE = J

Erklärung

Frage 6 von 10

In order to life a 1 kg book to a height of 2 m, how much work must be done? Use a value of 10 for the acceleration due to gravity.

Wähle eine der folgenden:

Erklärung

Frage 7 von 10

Fülle die Lücke, um den Text zu vervollständigen

How fast is a 5 kg ball moving the instant before striking the ground after it is dropped from a height of 4 meters? v = m/s

Erklärung

Frage 8 von 10

A boy pushes a chair with a force of 25 N. If he exerts the force for 2 meters, how much work has he done on the chair?

Wähle eine der folgenden:

Erklärung

Frage 9 von 10

A truck driver is trying to push a 1500 kg loaded truck with an applied force of 5000 N. Unfortunately, his attempt was unsuccessful the truck stays stationary no matter how hard the driver pushes. How much work is done by the driver?

Wähle eine der folgenden:

Erklärung

Frage 10 von 10

Two heavy objects collide. Which of the following could be where their initial kinetic energies could be transferred?

Wähle eine oder mehr der folgenden:

Erklärung

A woman carries a 5 kg box of clothes to donate into the shop. If she walks a horizontal distance of 10 meters from her car to the shop door, how much work has gravity done on the box?

First blank is the numerical value. The second blank is for the units.

W =

How much potential energy does a 1 kg textbook have if it is thrown to a height of 5 meters? (Use a value of 10 for the acceleration due to gravity)

U = J

What is the kinetic energy of a 1000 kg car moving at 10 m/s?

KE = J

How fast is a 5 kg ball moving the instant before striking the ground after it is dropped from a height of 4 meters?

v = m/s