Chapter 4-6 Newton's Laws

1. *Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object. *Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale. *The Mass of an object doesn't change when an object's location changes. Weight, on the other hand does change with location. THERFORE, if I have a mass of 2.5kg on Earth my mass on Pluto would be__________

Mass does NOT change when the object goes to a different location.

Explanation

Mass does NOT change when the object goes to a different location.

Submit

3. What formala would you use to figure out how much a 60KG person weighs on earth?

W=mg

V=d/t

F=ma

W=fd

The formula w=mg is used to calculate the weight of an object on Earth. Here, "w" represents weight, "m" represents mass, and "g" represents the acceleration due to gravity. By multiplying the mass of the person (60KG) with the acceleration due to gravity on Earth, the formula gives us the weight of the person on Earth.

Explanation

The formula w=mg is used to calculate the weight of an object on Earth. Here, "w" represents weight, "m" represents mass, and "g" represents the acceleration due to gravity. By multiplying the mass of the person (60KG) with the acceleration due to gravity on Earth, the formula gives us the weight of the person on Earth.

4. When you double the force acting on an object the acceleration is doubled. Is this true?

True

False

When you double the force acting on an object, according to Newton's second law of motion, the acceleration of the object will also double. This is because the force and acceleration are directly proportional to each other. So, if you increase the force applied to an object, the object will experience a greater acceleration in the same direction. Therefore, the statement "When you double the force acting on an object the acceleration is doubled" is true.

Explanation

When you double the force acting on an object, according to Newton's second law of motion, the acceleration of the object will also double. This is because the force and acceleration are directly proportional to each other. So, if you increase the force applied to an object, the object will experience a greater acceleration in the same direction. Therefore, the statement "When you double the force acting on an object the acceleration is doubled" is true.

5. What are the British units for force, weight, and mass? (use commas to separate your answers)

The British units for force, weight, and mass are pound, pound, and slug. Additionally, 1lb, 1lb, and lb are also used as units for force, weight, and mass in the British system.

Explanation

The British units for force, weight, and mass are pound, pound, and slug. Additionally, 1lb, 1lb, and lb are also used as units for force, weight, and mass in the British system.

Submit

6. How much force must be applied to a toy car that has a mass of .25kg to achieve an acceleration of 2.4m/s²?

24.5N

.6N

.06N

2.45N

To calculate the force required to achieve a certain acceleration, we can use Newton's second law of motion, which states that force is equal to mass multiplied by acceleration (F=ma). In this case, the mass of the toy car is given as 0.25kg and the desired acceleration is 2.4m/s^2. Plugging these values into the formula, we get F = 0.25kg * 2.4m/s^2 = 0.6N. Therefore, the correct answer is 0.6N.

Explanation

To calculate the force required to achieve a certain acceleration, we can use Newton's second law of motion, which states that force is equal to mass multiplied by acceleration (F=ma). In this case, the mass of the toy car is given as 0.25kg and the desired acceleration is 2.4m/s^2. Plugging these values into the formula, we get F = 0.25kg * 2.4m/s^2 = 0.6N. Therefore, the correct answer is 0.6N.

7. If an object weighs 10 Newtons on the Earth and another object weighs 10 Newtons on the moon, which one has the least mass?

The Earth has a greater gravitational pull than the moon, therefore the mass on the Earth is larger.

Explanation

The Earth has a greater gravitational pull than the moon, therefore the mass on the Earth is larger.

Submit

8. What are the cgs system units for force, mass, weight?

The correct answer is dyne, gram, dyne. In the cgs system, force is measured in dynes, mass is measured in grams, and weight is also measured in dynes. The dyne is the unit of force in the cgs system, the gram is the unit of mass, and weight is simply the force exerted on an object due to gravity, which is also measured in dynes. Therefore, the units for force, mass, and weight in the cgs system are dyne, gram, dyne.

Explanation

The correct answer is dyne, gram, dyne. In the cgs system, force is measured in dynes, mass is measured in grams, and weight is also measured in dynes. The dyne is the unit of force in the cgs system, the gram is the unit of mass, and weight is simply the force exerted on an object due to gravity, which is also measured in dynes. Therefore, the units for force, mass, and weight in the cgs system are dyne, gram, dyne.

Submit

9. Type in the SI unit for mass, weight, force. (use commas to separate your answers)

The SI unit for mass is kilogram (kg), the SI unit for weight is Newton (N), and the SI unit for force is also Newton (N).

Explanation

The SI unit for mass is kilogram (kg), the SI unit for weight is Newton (N), and the SI unit for force is also Newton (N).

Submit

11. * Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object. * Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale. *The Mass of an object doesn't change when an object's location changes. Weight, on the other hand does change with location. THEREFORE, if an object has a mass of 2.5kg on Earth and g on Pluto 0.6m/s² my weight on Pluto would be ______

W=mg
W=(2.5 kg)(0.6 m/s/s)
W= 1.5N

Explanation

W=mg
W=(2.5 kg)(0.6 m/s/s)
W= 1.5N

Submit