Forces Unit Test Elarth

Last updated almost 3 years ago

18 questions

1

Library

Forces Unit Test Elarth

Last updated almost 3 years ago

18 questions

1

What is the mathematical model that best fits the data shown on the graph?

1

For your force diagrams, remember to identify which of the four scenarios match with the situation described in the question.

                                             BAR = Balanced At Rest
                                             BCV = Balanced Constant Velocity
                                             USU = Unbalanced Speeding Up
                                             USD = Unbalanced Slowing Down

1

Your hardworking physics teacher drags a cart of rocketry supplies across the rough pavement at a constant velocity. Draw a force diagram for this situation and identify the force scenario.

1

A bottle rocket is accelerated upward immediately after launch. Draw a force diagram for this situation and identify the force scenario.

1

After reaching its maximum height, a bottle rocket falls back down toward the ground. Draw a force diagram for this situation and identify the force scenario.

1

Three students watch a jet plane roar by over their heads at a constant velocity. Student A says that the force of the jet engines must be the same as the force of air resistance on the plane. Student B says that the force of the jet engines has to be larger than the force of air resistance because the plane is moving forward. Student C says that the plane must have turned off its jet engines for a moment because it is moving at a constant velocity.

Using a Claim, Evidence, Reasoning argument, determine which student is correct.

1

Write a haiku (5 syllables in the first line, 7 in the second, and 5 in the third) about forces.

1

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important.

Just kidding. Three sentences will do. Paragraphs would really impress me, though.

1

What is the mathematical model that best fits the data shown on the graph?

1

Using the graph to the left, how much force was applied to the masses in this lab?

For your force diagrams, remember to identify which of the four scenarios match with the situation described in the question.

                                             BAR = Balanced At Rest
                                             BCV = Balanced Constant Velocity
                                             USU = Unbalanced Speeding Up
                                             USD = Unbalanced Slowing Down

Your hardworking physics teacher drags a cart of rocketry supplies across the rough pavement at a constant velocity. Draw a force diagram for this situation and identify the force scenario.

A bottle rocket is accelerated upward immediately after launch. Draw a force diagram for this situation and identify the force scenario.

After reaching its maximum height, a bottle rocket falls back down toward the ground. Draw a force diagram for this situation and identify the force scenario.

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.2 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

The water pushes the bottle with more force because the bottle moves faster.

The bottle pushes the water with more force because of the air pressure inside.

The bottle and the water push each other with equal forces.

The bottle pushes the water with more force because it is moving upward.

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.8 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

The water pushes with more force because it has more mass.

The water pushes the bottle with more force because the bottle moves faster.

The bottle and the water push each other with equal forces.

The bottle pushes the water with more force because it is moving upward.

You kick a soccer ball. It rolls down the field, slower and slower, then stops. Why did it stop?

Your kick was weak.

The normal force makes it stop.

The force of friction acts against motion.

The battery ran out.

When the rocket is at its highest point and begins to fall, what is the value of the normal force?

9.8 N

13.7 N

not enough information to calculate

0 N

An empty bottle rocket has a weight of 1.8 N. What is the mass of this rocket?

In the first 0.2 seconds of launch, a 0.12 kg bottle rocket feels a thrust force of 15 N. What is the change in the rocket's velocity during that time?

The SpaceX Falcon 9 rocket has a mass of 550,000 kg and an initial thrust force of 920,000 N. Three seconds after launch, it has a velocity of 25 m/s. What is the momentum of the rocket at this point?

A 0.16 kg bottle rocket is partially filled with 0.48 kg of water. The rocket is launched upward at 24 m/s. What is the velocity of the water as it leaves the bottle?

Three students watch a jet plane roar by over their heads at a constant velocity. Student A says that the force of the jet engines must be the same as the force of air resistance on the plane. Student B says that the force of the jet engines has to be larger than the force of air resistance because the plane is moving forward. Student C says that the plane must have turned off its jet engines for a moment because it is moving at a constant velocity.

Using a Claim, Evidence, Reasoning argument, determine which student is correct.

Write a haiku (5 syllables in the first line, 7 in the second, and 5 in the third) about forces.

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important.

Just kidding. Three sentences will do. Paragraphs would really impress me, though.

What pattern is shown on the graph to the left?

Linear

Quadratic

Horizontal

Inverse

Using your mathematical model, predict the acceleration of a 3kg mass.

0.12 m/s/s

0.36 m/s/s

25 m/s/s

0.04 m/s/s

Using the graph to the left, how much force was applied to the masses in this lab?

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.2 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

The water pushes the bottle with more force because the bottle moves faster.

The bottle pushes the water with more force because of the air pressure inside.

The bottle and the water push each other with equal forces.

The bottle pushes the water with more force because it is moving upward.

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.8 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

The water pushes with more force because it has more mass.

The water pushes the bottle with more force because the bottle moves faster.

The bottle and the water push each other with equal forces.

The bottle pushes the water with more force because it is moving upward.

You kick a soccer ball. It rolls down the field, slower and slower, then stops. Why did it stop?

Your kick was weak.

The normal force makes it stop.

The force of friction acts against motion.

The battery ran out.

When the rocket is at its highest point and begins to fall, what is the value of the normal force?

9.8 N

13.7 N

not enough information to calculate

0 N

An empty bottle rocket has a weight of 1.8 N. What is the mass of this rocket?

18 kg

1.8 kg

0.18 kg

56 kg

0.56 kg

5.6 kg

In the first 0.2 seconds of launch, a 0.12 kg bottle rocket feels a thrust force of 15 N. What is the change in the rocket's velocity during that time?

125 m/s

9 m/s

12 m/s

75 m/s

25 m/s

0.36 m/s

18 m/s

The SpaceX Falcon 9 rocket has a mass of 550,000 kg and an initial thrust force of 920,000 N. Three seconds after launch, it has a velocity of 25 m/s. What is the momentum of the rocket at this point?

420,000 Ns

36,800 Ns

13,750,000 Ns

420 Ns

23,000,000 Ns

22,000 Ns

42 Ns

A 0.16 kg bottle rocket is partially filled with 0.48 kg of water. The rocket is launched upward at 24 m/s. What is the velocity of the water as it leaves the bottle?

2.2 m/s

6.4 m/s

11.5 m/s

72 m/s

3.8 m/s

24 m/s

8.0 m/s

What pattern is shown on the graph to the left?

Linear

Quadratic

Horizontal

Inverse

Using your mathematical model, predict the acceleration of a 3kg mass.

0.12 m/s/s

0.36 m/s/s

25 m/s/s

0.04 m/s/s

Forces Unit Test Elarth

Forces Unit Test Elarth

What is the mathematical model that best fits the data shown on the graph?

Your hardworking physics teacher drags a cart of rocketry supplies across the rough pavement at a constant velocity. Draw a force diagram for this situation and identify the force scenario.

A bottle rocket is accelerated upward immediately after launch. Draw a force diagram for this situation and identify the force scenario.

After reaching its maximum height, a bottle rocket falls back down toward the ground. Draw a force diagram for this situation and identify the force scenario.

Write a haiku (5 syllables in the first line, 7 in the second, and 5 in the third) about forces.

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important. Just kidding. Three sentences will do. Paragraphs would really impress me, though.

What is the mathematical model that best fits the data shown on the graph?

Using the graph to the left, how much force was applied to the masses in this lab?

Your hardworking physics teacher drags a cart of rocketry supplies across the rough pavement at a constant velocity. Draw a force diagram for this situation and identify the force scenario.

A bottle rocket is accelerated upward immediately after launch. Draw a force diagram for this situation and identify the force scenario.

After reaching its maximum height, a bottle rocket falls back down toward the ground. Draw a force diagram for this situation and identify the force scenario.

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.2 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

A bottle rocket that has a mass of 0.2 kg is partially filled with 0.8 kg of water and then launched. During the launch, the bottle pushes the water down while the water pushes the bottle up. Which of the following is true?

You kick a soccer ball. It rolls down the field, slower and slower, then stops. Why did it stop?

When the rocket is at its highest point and begins to fall, what is the value of the normal force?

An empty bottle rocket has a weight of 1.8 N. What is the mass of this rocket?

In the first 0.2 seconds of launch, a 0.12 kg bottle rocket feels a thrust force of 15 N. What is the change in the rocket's velocity during that time?

The SpaceX Falcon 9 rocket has a mass of 550,000 kg and an initial thrust force of 920,000 N. Three seconds after launch, it has a velocity of 25 m/s. What is the momentum of the rocket at this point?

A 0.16 kg bottle rocket is partially filled with 0.48 kg of water. The rocket is launched upward at 24 m/s. What is the velocity of the water as it leaves the bottle?

Write a haiku (5 syllables in the first line, 7 in the second, and 5 in the third) about forces.

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important. Just kidding. Three sentences will do. Paragraphs would really impress me, though.

What pattern is shown on the graph to the left?

Using your mathematical model, predict the acceleration of a 3kg mass.

Using the graph to the left, how much force was applied to the masses in this lab?

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important.

Just kidding. Three sentences will do. Paragraphs would really impress me, though.

Please write a 3 page essay describing how this class has changed your life for the better. Be sure it is positive, because it could be important.

Just kidding. Three sentences will do. Paragraphs would really impress me, though.