Physics Chapter 4 Review Multiple Choice

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.8 m/s².

Front

How does the weight of an object change on different planets?

Back

Weight varies depending on the planet's gravitational pull; it is calculated using W = m × g, where g changes.

Front

What is equilibrium in physics?

Back

Equilibrium occurs when the net force acting on an object is zero.

Front

What is the significance of Copernicus's theory?

Back

He proposed that the Earth revolves around the Sun, challenging the geocentric model.

Front

What happens to an object's motion in a frictionless environment?

Back

An object will continue in its state of motion unless acted upon by an external force.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object's mass.

Front

How do you calculate the weight of a 50 kg object on Jupiter?

Back

Weight on Jupiter = 50 kg × 3 × 9.8 m/s² = 1500 N.

Front

What is the net force acting on an object in uniform motion?

Back

The net force is zero.

Front

What is the effect of a constant force on an object?

Back

A constant force will cause the object to accelerate uniformly.