Thursday

What is the energy of motion?

• Chemical energy

• Electrical energy

• Potential energy

• Kinetic energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The physical science class is studying potential and kinetic energy. Their teacher has asked them to classify the following scenarios as potential or kinetic energy. Choose the two scenarios that represent potential energy.

• A. A raised weight

• B. A speeding car

• C. Water behind a dam

• D. A rolling stone

Tags

NGSS.MS-PS3-2

Which statement describes the forces acting on a person sitting on the floor and a pen sitting on a table?

• These are both examples of balanced forces that result in no motion.

• These are both examples of balanced forces that result in motion.

• These are both examples of unbalanced forces that result in no motion.

• These are both examples of unbalanced forces that result in motion.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which example demonstrates a situation where potential energy decreases while kinetic energy increases?

• A. A roller coaster going up to the highest peak at the start of the ride

• B. A skateboard slowing down as it coasts up a hill

• C. A swing going up to its highest point

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

If the forces on a shopping cart are balanced, what kind of motion might the cart have? Select two answers.

• A. Moving backward at increasing speed

• B. Moving forward at constant speed

• C. Moving forward while slowing down

• D. Remaining in the same spot and not moving

Tags

NGSS.MS-PS2-2

The student wants her race car to go even faster. How could she increase the speed of the car on the smooth wooden ramp?

• The student could decrease the angle of the ramp.

• The student could apply an external force to the car at the top of the ramp.

• The student could increase the mass of the car.

• The student could apply a rough texture to the car’s tires.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Which scenario best illustrates the conversion of kinetic energy into potential energy?

• A. A car accelerating on a flat road

• B. A ball thrown upwards reaching its highest point

• C. A bicycle coasting downhill

How can a student increase the potential energy of a toy car at the top of a ramp?

• By increasing the height of the ramp

• By decreasing the mass of the car

• By applying a force to the car at the bottom of the ramp

• By using a smoother surface on the ramp

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What type of energy is stored in an object due to its position or height?

• Thermal energy

• Potential energy

• Sound energy

• Kinetic energy

Tags

NGSS.MS-PS3-2

What happens to the potential energy of an object as it falls freely under gravity?

• It increases

• It decreases

• It remains constant

• It converts into sound energy

Tags

NGSS.MS-PS3-2