Front

What is the formula to calculate the time it takes for an object to reach a velocity of 0 m/s when thrown upwards?

Back

The time can be calculated using the formula: t = v_initial / g, where v_initial is the initial velocity and g is the acceleration due to gravity (approximately 9.81 m/s²).

Front

What happens to the velocity of an object thrown upwards as it rises?

Back

The velocity decreases until it reaches 0 m/s at the peak of its trajectory.

Front

In a vacuum, what happens to the motion of an object once it is set in motion?

Back

It will continue to move indefinitely at a constant velocity unless acted upon by an external force.

Front

What is the definition of acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What causes friction between two surfaces?

Back

Friction is caused by the microscopic imperfections and interactions between the surfaces in contact.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².

Front

How does mass differ from weight?

Back

Mass is the amount of matter in an object and remains constant regardless of location, while weight is the force exerted by gravity on that mass and can change depending on the gravitational field.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, the relationship is given by the formula F = m * a, where F is force, m is mass, and a is acceleration.

Front

What happens to an object's weight if it is taken to a planet with a different gravitational pull?

Back

The object's weight will change according to the gravitational pull of the new planet, but its mass will remain the same.

Front

What is the significance of the term 'net force'?

Back

Net force is the total force acting on an object after all the individual forces are combined, determining the object's acceleration.