NYS Science Exam

A racecar accelerates at a rate 19 m/s/s. If the mass of the race car is 1600 kg, determine the net force acting on the car.

• 30,400 N

• 8,400 N

• 300 N

• 84 N

Tags

NGSS.MS-PS2-2

When an object is acted on by unbalanced forces, the object will -

• continue in the same direction

• continue at the same speed

• accelerate

• come to a stop

Tags

NGSS.MS-PS2-2

A student drops a beaker on the floor, breaking it. Which of the following should the student do FIRST?

• Tell the teacher about the accident.

• Find a new beaker to use.

• Look for a broom and dustpan.

• Have your lab partner clean it up for you.

Scientists perform many trials for each experiment because —

• they want to improve their public image

• they want to improve the reliability of the results

• they have to rewrite the hypothesis

• they have to decide how to publish the data

Tags

NGSS.HS-PS1-3

Structures A and B are located in the

• valence shell

• energy levels

• electron cloud

• nucleus

Tags

NGSS.MS-PS1-1

What element is represented in this model?

• Lithium

• Beryllium

• Sodium

• Nitrogen

Tags

NGSS.MS-PS1-1

Which of the following is an example of a new substance being formed by a chemical reaction?

• milk souring

• water evaporating

• iron bending

• helium-filled balloon floating

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

A student creates a mixture of water and washing soda weighing 10 g and a mixture of water and epsom salts weighing 15 grams. He knows that when he mixes the two substances a chemical change will occur. According to the law of conservation of mass, what should the weight of the products be after he mixes them?

• 10 g

• 15 g

• 5 g

• 25 g

Tags

NGSS.MS-PS1-5

Two students play tug of war. Jack pulls East with a force of 82 Newtons while Tony pulls west with a force of 96 Newtons. Which of the following best describe the net force on the center of the rope?

• 178 N West

• 178 N East

• 14 N West

• 14 N East

Tags

NGSS.MS-PS2-2

Louis was traveling south with his family from Dallas to San Antonio. Louis used his phone to check how long it would to get there. His phone read that it would take about 4 hours to travel the 270 miles. What would the velocity of Louis's car have to be in order to cover that distance in that amount of time?

• 67.5 mi/hr²

• 67.5 mi/hr

• 67.5 mi/hr south

• 67.5 mi/hr² south