Science QA2 Review

What is the net force acting on the box?

• 10 Newtons to the right

• 5 Newtons to the left

• 5 Newtons to the right

• 15 Newtons to the left

Tags

NGSS.MS-PS2-2

Which statement best describes the potential and kinetic energy of the cyclist?

• When the cyclist is at the bottom, the potential energy is the greatest and kinetic energy is the least.

• At the top of the hill, the cyclist has the greatest potential energy and least kinetic energy.

• As the cyclist moves up the hill, the potential energy decreases and kinetic energy increases.

• As the cyclist moves down the hill, the potential energy decreases and kinetic energy increases.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which observation provides evidence that a new substance formed in the beaker after the investigation?

• The solution turned pink.

• The liquid has a strong chemical smell.

• The solution is room temperature.

• The solution is clear.

Tags

NGSS.MS-PS1-2

A racecar is driven with 10N of force. A parachute deploys to slow the car down, exerting a force of 7N against the racecar. Which statement best describes the resulting motion of the racecar?

• The racecar will stop moving, resulting in a balanced force.

• The racecar will stop and then start moving again.

• The racecar will move in the opposite direction with a net force of 3N.

• The racecar will continue moving in its current direction with a net force of 3N.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The archer shown here is pulling back a bow. This action stores energy in the bowstring due to the stretch of the material. What type of energy is this?

• Elastic Potential

• Chemical Potential

• Kinetic

• Gravitational Potential

Tags

NGSS.MS-PS3-2

The food shown here is stored energy due to the bonds of elements and molecules of the matter. It will give the person energy to move after the food is digested. What type of energy is this?

• Elastic Potential

• Chemical Potential

• Kinetic

• Gravitational Potential

Tags

NGSS.MS-LS1-7

This is the energy of motion, and it depends on the mass and speed of an object.

• Elastic Potential

• Chemical Potential

• Kinetic

• Gravitational Potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

This is stored energy that depends on the mass and location of an object.

• Elastic Potential

• Chemical Potential

• Kinetic

• Gravitational Potential

Tags

NGSS.MS-PS3-2

During an investigation, a student combined lemon juice (citric acid) and sodium bicarbonate (baking soda). When the reactants are combined, a chemical change was observed. Which pieces of evidence did the student likely observe?

• The solution had a strong smell.

• The solution changed colors and temperature.

• The solution produced chunks (solid).

• The bubbles appeared due to the formation of a gas.

Tags

NGSS.MS-PS1-2

Which example results in balanced forces?

• Example 1

• Example 2

• Example 3

• Example 4