Quiz on Forces

What is the net force?

• The force of gravity on an object

• The overall forces acting on an object combined

• The force of friction on an object

• The force applied by a person

Tags

NGSS.MS-PS2-2

Which of the following indicates that forces on an object are balanced?

• The object is accelerating.

• The object is changing direction.

• The net force is zero.

• The object is moving faster.

Which type of friction involves a liquid or gas?

• Static

• Sliding

• Rolling

• Fluid

Which force acts opposite to the direction of motion?

• Normal force

• Friction force

• Applied force

• Gravitational force

What type of friction acts on objects that are not moving?

• Kinetic friction

• Static friction

• Rolling friction

• Fluid friction

What happens to an object in motion if no unbalanced force acts on it, according to Newton's First Law?

• It will stop.

• It will continue moving at a constant speed and direction.

• It will accelerate.

• It will change direction.

According to Newton's First Law, what is necessary to change the velocity of an object?

• A change in temperature.

• An unbalanced force.

• A change in color.

• A balanced force.

Tags

NGSS.MS-PS2-2

What is the result of applying a greater force to an object according to Newton's Second Law?

• Less acceleration.

• No change in motion.

• Greater acceleration.

• Change in color.

Tags

NGSS.MS-PS2-2

What does inertia refer to in Newton's First Law of Motion?

• The tendency of an object to change its color.

• The tendency of an object to resist a change in its motion.

• The tendency of an object to increase its speed.

• The tendency of an object to decrease its mass.

In the formula F = ma, what does 'F' represent?

• Force in newtons

• Mass in kilograms

• Acceleration in meters per second squared

• Velocity in meters per second

Tags

NGSS.HS-PS2-1