Physical Science Midterm

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

• Joule

• Newton

• Watt

• Pascal

A student pushes a box with a force of 10 N to the right and another student pushes with a force of 5 N to the left. What is the net force acting on the box?

• 15 N to the right

• 5 N to the right

• 5 N to the left

• 0 N

A car is moving at a constant speed on a straight road. If the forces acting on the car suddenly become unbalanced, predict what will happen to the car's motion and explain your reasoning.

• The car will continue at the same speed.

• The car will stop immediately.

• The speed or direction of the car will change.

• The car will move in a circle.

Which law states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Conservation of Energy

• 6 N

• 5 N

• 1.5 N

• 0.67 N

Which of the following is the correct formula for work?

Which of the following is a form of kinetic energy?

• Chemical energy in a battery

• A moving car

• Energy stored in a stretched rubber band

• Gravitational potential energy

If a ball is dropped from a height, which type of energy increases as it falls?

• Potential energy

• Kinetic energy

• Chemical energy

• Nuclear energy

Which instrument is used to measure temperature?

• Barometer

• Thermometer

• Hygrometer

• Anemometer

Which process transfers heat through direct contact between particles?

• Conduction

• Convection

• Radiation

• Evaporation