Midterm Review #3 Force

Front

What is the formula to calculate force?

Back

Force (F) = Mass (m) × Acceleration (a)

Front

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

Back

Newton (N)

Front

How much force is required to accelerate a 1,800 kg truck at 3 m/s²?

Back

5400 N

Front

What is the force that keeps objects on top of surfaces instead of letting them sink into the surface?

Back

Normal force

Front

When mass is constant, how are force and acceleration related?

Back

Directly proportional

Front

What is the weight of a 456g object in Newtons? (Convert to kg first)

Back

~4.56 N

Front

If a ball is falling at its terminal velocity, what is the magnitude of the net force?

Back

Zero (0 N)

Front

What is the relationship between weight and mass?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g) where g ≈ 9.81 m/s².

Front

What is static friction?

Back

The force that keeps an object at rest and prevents it from moving.

Front

What is kinetic friction?

Back

The force that opposes the motion of two surfaces sliding past each other.