Physical Science Exam Practice

A ball rolling on a flat surface comes to a stop. What causes this?

• Inertia

• Gravity

• Friction

• Acceleration

Tags

NGSS.MS-PS2-2

An object's acceleration increases when:

• Its mass decreases and force stays the same

• Its mass increases and force stays the same

• It moves at constant velocity

• No force is applied

Tags

NGSS.MS-PS2-2

Which of these best illustrates Newton’s First Law?

• A ball thrown into the air comes back down

• A car stops when the brakes are applied

• A soccer ball remains still until kicked

• A rocket accelerates into space

A cart moves faster as it rolls down a ramp. What causes the increase in speed?

• Air resistance

• Unbalanced force

• Balanced force

• Friction

Tags

NGSS.MS-PS2-2

What does the slope of a distance-time graph represent?

• Acceleration

• Force

• Speed

• Time

What kind of energy does a moving car have?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

If the net force on an object is zero, the object will:

• Speed up

• Slow down

• Remain at rest or move at constant speed

• Change direction

Tags

NGSS.MS-PS2-2

What is required for work to be done on an object?

• Friction must be present

• The object must move

• The object must gain energy

• The force must be zero

A 10 N force moves a box 3 meters. How much work is done?

• 3 J

• 10 J

• 30 J

• 13 J

Which factor most affects an object's kinetic energy?

• Its shape

• Its position

• Its speed

• Its temperature

Tags

NGSS.MS-PS3-1