IB Physics Forces Quiz

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

• Watts

• Newtons

• Pascals

• Joules

In a free body diagram, which force is always perpendicular to the surface?

• Frictional force

• Normal reaction force

• Gravitational force

• Tension force

How is the force of friction calculated on a ramp?

• Normal force times gravity

• Coefficient of friction times normal force

• Mass times gravity

• Mass times acceleration

According to Newton's second law, what happens to acceleration if the mass of an object increases while the force remains constant?

• Acceleration decreases

• Acceleration increases

• Acceleration remains the same

• Acceleration becomes zero

What is the relationship between work and energy in a system?

• Work is the energy lost

• Work is the energy added or removed

• Work is the energy stored

• Work is the energy destroyed

What is impulse in terms of force and time?

• Force minus time

• Force times time

• Force divided by time

• Force times distance

How can momentum be changed in a system?

• By applying a force over a distance

• By decreasing velocity

• By applying a force over time

• By increasing mass

What type of force is responsible for keeping an object moving in a circular path?

• Tension force

• Frictional force

• Centripetal force

• Gravitational force

What is the unit of angular velocity?

• Degrees per second

• Meters per second

• Radians per second

• Revolutions per minute

In a force field, what is the unit of an electric field?

• Volts per meter

• Joules per coulomb

• Newtons per coulomb

• Newtons per kilogram