Missouri Physics Education Assessment
Exam Practice Questions And Correct
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Rationales 2026 Q&A | Instant
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1. A car accelerates uniformly from rest at 2.5 m/s22.5 \, m/s^22.5m/s2.
What is its velocity after 8 seconds?
A. 10 m/s
B. 20 m/s
C. 25 m/s
D. 30 m/s
The velocity of an object under constant acceleration is found using
v=u+atv = u + atv=u+at. Since the car starts from rest, u=0u = 0u=0, so
v=0+(2.5)(8)=20 m/sv = 0 + (2.5)(8) = 20 \, m/sv=0+(2.5)(8)=20m/s.
, 2. Which law states that the force between two charges is proportional
to the product of the charges and inversely proportional to the square
of the distance between them?
A. Newton’s First Law
B. Ohm’s Law
C. Coulomb’s Law
D. Faraday’s Law
Coulomb’s Law describes electrostatic forces between charged particles. It
establishes how charge magnitude and separation distance affect electric
force.
3. A projectile launched horizontally from a cliff has which type of
horizontal acceleration neglecting air resistance?
A. Constant positive acceleration
B. Constant negative acceleration
C. Increasing acceleration
D. Zero acceleration
In projectile motion without air resistance, gravity only affects vertical
motion. Therefore, horizontal velocity remains constant and horizontal
acceleration is zero.
4. What is the SI unit of electric power?
,A. Volt
B. Joule
C. Ampere
D. Watt
The watt is the SI unit of power and represents one joule of energy
transferred per second.
5. Which quantity is a vector?
A. Mass
B. Speed
C. Temperature
D. Velocity
Velocity includes both magnitude and direction, making it a vector
quantity. Scalars such as speed and mass have magnitude only.
6. A 10 N force acts on a 2 kg object. What is the acceleration?
A. 2 m/s²
B. 5 m/s²
C. 10 m/s²
D. 20 m/s²
Newton’s Second Law states F=maF = maF=ma. Rearranging gives
a=F/m=10/2=5 m/s2a = F/m = 10/2 = 5 \, m/s^2a=F/m=10/2=5m/s2.
, 7. Which electromagnetic wave has the highest frequency?
A. Radio waves
B. Microwaves
C. X-rays
D. Gamma rays
Gamma rays occupy the highest-frequency region of the electromagnetic
spectrum and therefore also have the highest energy.
8. What happens to the pressure of a gas if its volume decreases while
temperature remains constant?
A. Pressure decreases
B. Pressure remains constant
C. Pressure increases
D. Pressure becomes zero
Boyle’s Law states that pressure and volume are inversely proportional at
constant temperature. As volume decreases, pressure increases.
9. Which device converts mechanical energy into electrical energy?
A. Motor
B. Transformer
C. Battery
D. Generator
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. A car accelerates uniformly from rest at 2.5 m/s22.5 \, m/s^22.5m/s2.
What is its velocity after 8 seconds?
A. 10 m/s
B. 20 m/s
C. 25 m/s
D. 30 m/s
The velocity of an object under constant acceleration is found using
v=u+atv = u + atv=u+at. Since the car starts from rest, u=0u = 0u=0, so
v=0+(2.5)(8)=20 m/sv = 0 + (2.5)(8) = 20 \, m/sv=0+(2.5)(8)=20m/s.
, 2. Which law states that the force between two charges is proportional
to the product of the charges and inversely proportional to the square
of the distance between them?
A. Newton’s First Law
B. Ohm’s Law
C. Coulomb’s Law
D. Faraday’s Law
Coulomb’s Law describes electrostatic forces between charged particles. It
establishes how charge magnitude and separation distance affect electric
force.
3. A projectile launched horizontally from a cliff has which type of
horizontal acceleration neglecting air resistance?
A. Constant positive acceleration
B. Constant negative acceleration
C. Increasing acceleration
D. Zero acceleration
In projectile motion without air resistance, gravity only affects vertical
motion. Therefore, horizontal velocity remains constant and horizontal
acceleration is zero.
4. What is the SI unit of electric power?
,A. Volt
B. Joule
C. Ampere
D. Watt
The watt is the SI unit of power and represents one joule of energy
transferred per second.
5. Which quantity is a vector?
A. Mass
B. Speed
C. Temperature
D. Velocity
Velocity includes both magnitude and direction, making it a vector
quantity. Scalars such as speed and mass have magnitude only.
6. A 10 N force acts on a 2 kg object. What is the acceleration?
A. 2 m/s²
B. 5 m/s²
C. 10 m/s²
D. 20 m/s²
Newton’s Second Law states F=maF = maF=ma. Rearranging gives
a=F/m=10/2=5 m/s2a = F/m = 10/2 = 5 \, m/s^2a=F/m=10/2=5m/s2.
, 7. Which electromagnetic wave has the highest frequency?
A. Radio waves
B. Microwaves
C. X-rays
D. Gamma rays
Gamma rays occupy the highest-frequency region of the electromagnetic
spectrum and therefore also have the highest energy.
8. What happens to the pressure of a gas if its volume decreases while
temperature remains constant?
A. Pressure decreases
B. Pressure remains constant
C. Pressure increases
D. Pressure becomes zero
Boyle’s Law states that pressure and volume are inversely proportional at
constant temperature. As volume decreases, pressure increases.
9. Which device converts mechanical energy into electrical energy?
A. Motor
B. Transformer
C. Battery
D. Generator
