Question

What is the measure of the amount of matter in an object?(1 point)
Responses

velocity
velocity

mass
mass

net force
net force

Newton

How much force in Newtons is required to accelerate a 5 kg bowling ball at 2 m/s^2
?(1 point)
Responses

2.5 N
2.5 N

7 N
7 N

3 N
3 N

10 N

Which statement correctly applies to a car that changes its velocity over a period of time?(1 point)
Responses

No net force is acting on it.
No net force is acting on it.

Forces are acting on it.
Forces are acting on it.

The combination of all forces acting on it is zero.
The combination of all forces acting on it is zero.

A nonzero net force is acting on it.

In each of three trials of an investigation, a single force is applied to a mobile. Each time, the mobile acquires a different acceleration. The table shows the relationship between the acceleration and the acting force.


Force (N)

Acceleration (m/s2)

1.2

4.8

0.7

2.8

1.6

6.4

Which phrase best describes a graph that would represent the relationship shown in the table?(1 point)
Responses

a downward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis
a downward-sloping line drawn on a graph with acceleration shown on the y -axis and force shown on the x -axis

a downward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
a downward-sloping line drawn on a graph with acceleration shown on the x -axis and force shown on the y -axis

an upward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
an upward-sloping line drawn on a graph with acceleration shown on the x -axis and force shown on the y -axis

an upward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis

Which statement describes the motion of an object when the net force is zero?(1 point)
Responses

The object changes direction.
The object changes direction.

The object is speeding up.
The object is speeding up.

The object is slowing down.
The object is slowing down.

The object is at rest.

Answers

GPT-4o mini
Here are the answers to your questions:

1. **What is the measure of the amount of matter in an object?**
- **Response:** mass

2. **How much force in Newtons is required to accelerate a 5 kg bowling ball at 2 m/s²?**
- Using Newton's second law, \( F = m \times a \):
- \( F = 5 \, \text{kg} \times 2 \, \text{m/s}² = 10 \, \text{N} \)
- **Response:** 10 N

3. **Which statement correctly applies to a car that changes its velocity over a period of time?**
- **Response:** A nonzero net force is acting on it.

4. **Which phrase best describes a graph that would represent the relationship shown in the table?**
- Since the relationship shows that as the force increases, the acceleration also increases, it’s a direct relationship.
- **Response:** an upward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis

5. **Which statement describes the motion of an object when the net force is zero?**
- The object would either remain at rest or move at a constant velocity.
- **Response:** The object is at rest (though it's worth noting that this statement doesn't account for constant motion; it could also be moving at a constant velocity).

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