Physical Science -Midterm Review '26

Jacob and Anju are discussing scientific laws and theories for their science project. Which of the following statements should they include to explain the differences between the two?

• Scientific theories require scientific evidence but scientific laws do not.

• Scientific theories are based on observations and scientific laws are based on opinions.

• Scientific theories explain why something happens, and laws describe what happens.

• Scientific theories are rarely changed and scientific laws are modified frequently.

Hey there, science explorers! Eloise and Nolan are on a quest to understand measurements. Can you help them by telling what two parts every measurement has?

• Time and distance

• Value and unit

• SI and English

• Mass and length

Imagine you're in a science lab with TJ, Anuj, and Zoey. What role does a control variable play in your exciting experiment?

• a variable that stays the same throughout an experiment.

• a variable that is changed in an experiment.

• the largest, most powerful variable in an experiment.

• rarely used in scientific experiments.

Imagine Calvin is driving his super cool car and he zooms from 10 m/s to 50 m/s in just 2 seconds! Can you calculate the acceleration of Calvin's car?

• 10 m/s²

• 25 m/s²

• 40 m/s²

• 20 m/s²

Emily and Christian are on a spaceship traveling in space at 15.2 km/sec with its engines off. It is far from all gravitational or frictional forces. What will its speed be in 10 hours?

• Faster than 15.2 km/sec

• Slower than 15.2 km/sec

• 15.2 km/sec

• Cannot tell from the information given

Imagine you're on a mission with Emily, Nolan, and Logan to launch a rocket into space! How does the rocket gain altitude and leave the Earth’s atmosphere?

• The rocket exhaust pushes against the ground.

• The exhaust is thrust out of the rocket downward, causing the rocket to go up.

• The ground pushes against the exhaust leaving the rocket.

• The rocket exhaust pushes against the air.

Stephen and Stosh are playing catch with a baseball. If the baseball weighs 0.15 kilograms and Stephen throws it to Stosh at a speed of 20 m/s, what is the momentum of the baseball?

• 1.5 kg·m/s

• 3 kg·m/s

• 15 kg·m/s

• 30 kg·m/s

Tags

NGSS.HS-PS2-2

Natalie and her brother are having a blast roller skating at the park. Natalie has a mass of 60 kg and her brother has a mass of 30 kg. When Natalie playfully pushes off him, how do their accelerations compare?

• Brother accelerates faster than Natalie.

• Natalie accelerates faster than Brother.

• They both have the same acceleration.

• Neither will accelerate, because they are traveling at constant velocity.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

During a fun science experiment, Logan and Sarah decide to drop a 4.00 kg water balloon from the balcony of the North Penn auditorium. It falls 7.80 m before making a splash on the floor. What is the velocity the balloon reaches as it hits the floor?

• 16.4 m/s

• 12.4 m/s

• 17.5 m/s

• 109 m/s

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS2-4

NGSS.MS-PS3-4

Kelsey and Izzy are on a mission to move a magical block using their super strength! They need to push it with a force of 4 newtons over a distance of 10 meters. Can you help them calculate the work done in this fun adventure?

• 0.4 joules

• 2.5 joules

• 4 joules

• 40 joules

Tags

NGSS.MS-PS3-4