Physics Review DA 2

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).

Front

What is the relationship between mass and acceleration?

Back

According to Newton's second law, acceleration is inversely proportional to mass when the same force is applied. This means that as mass increases, acceleration decreases.

Front

What is the formula for calculating force?

Back

Force (F) is calculated using the formula F = m × a, where m is mass and a is acceleration.

Front

What is net force?

Back

Net force is the total force acting on an object after all the forces are combined. It determines the object's acceleration.

Front

What is the formula for speed?

Back

The formula for speed is s = d / t, where s is speed, d is distance, and t is time.

Front

How do you calculate the force needed to accelerate an object?

Back

To calculate the force needed to accelerate an object, use the formula F = m × a, where m is the mass of the object and a is the desired acceleration.

Front

What happens to acceleration if the mass of an object increases while the force remains constant?

Back

If the mass of an object increases while the force remains constant, the acceleration of the object decreases.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in the SI system is the Newton (N).

Front

If a dog has a mass of 40 kg and an acceleration of 0.9 m/s², what is the force exerted by the dog?

Back

The force exerted by the dog is 36 N, calculated using F = m × a.

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object; the object remains at rest or continues to move at a constant velocity.