Physics S1 Test Review (M1-M7)

Front

What is the relationship between force and acceleration?

Back

Force and acceleration are related in a linear fashion, as described by Newton's second law of motion (F = ma).

Front

What happens to a car's motion when it accelerates from rest at 2 m/s² for 2 seconds?

Back

The car's velocity increases from 0 to 4 m/s after 2 seconds of acceleration.

Front

What is the greatest tension in a cord when an elevator is rising?

Back

The tension in the cord is greatest when the elevator rises with increasing speed due to the additional force required to accelerate the weight upward.

Front

What does the particle model represent in motion?

Back

In the particle model, an object in motion is represented by a series of single points, indicating its position at different times.

Front

Can a force exist without an agent and a system?

Back

No, a force cannot exist without an agent (the source of the force) and a system (the object upon which the force acts).

Front

What is Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

Define acceleration in physics.

Back

Acceleration is the rate of change of velocity of an object with respect to time, measured in meters per second squared (m/s²).

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

Front

What does a velocity-time graph represent?

Back

A velocity-time graph represents an object's velocity over time, where the slope indicates acceleration.

Front

What is the significance of a negative acceleration?

Back

Negative acceleration, or deceleration, indicates that an object is slowing down.