Understanding Force and Acceleration

What does Newton's Second Law state about force and acceleration?

• Force is equal to velocity times time.

• Acceleration is independent of mass.

• Force is the same as acceleration.

• Force is equal to mass times acceleration (F = ma).

How do you calculate force using mass and acceleration?

• F = m / a

• F = m + a

• F = a - m

• F = m * a

If an object has a mass of 10 kg and accelerates at 2 m/s², what is the force applied?

• 15 N

• 20 N

• 25 N

• 5 N

How does friction affect the acceleration of an object?

• Friction has no effect on the acceleration of an object.

• Friction increases the acceleration of an object by aiding its motion.

• Friction only affects the speed of an object, not its acceleration.

• Friction decreases the acceleration of an object by opposing its motion.

What does a graph of force vs. acceleration look like for a constant mass?

• A curved line with varying slope.

• A horizontal line at zero force.

• A dotted line with no clear trend.

• A straight line through the origin with a slope equal to the mass.

Can you provide a real-world example where force is applied to accelerate an object?

• A person pushing a shopping cart at a constant speed.

• A rocket in space coasting without any thrust.

• A car accelerating when the driver presses the gas pedal.

• A ball rolling down a hill due to gravity.

How do speed and distance relate to acceleration in a moving object?

• Speed is the only factor that determines distance traveled.

• Acceleration only affects distance, not speed.

• Speed and distance are related to acceleration as acceleration changes speed, which in turn affects the distance traveled over time.

• Speed and distance are independent of acceleration.

If a car travels 100 meters in 5 seconds, what is its average speed?

• 20 meters per second

• 30 meters per second

• 15 meters per second

• 25 meters per second