Physics Semester 2 Test 2025

What is needed to calculate work?

• time and distance

• speed and distance

• force and direction

• acceleration and velocity

What is the unit of measurement for work?

• meters

• newtons

• m/s

• Joules

Tags

NGSS.MS-PS3-5

You have to push with 15 N of force to move it 10 meters. How much work do you do?

• 15 Joules

• 150 Joules

• 1.5 Joules

• .67 Joules

Tags

NGSS.MS-PS2-2

What is the ideal mechanical advantage (IMA) of this pulley?

• 0

• 1

• 2

What is a simple machine?

• A device that helps reduce the amount of force required to do work
• A device that helps increase the amount of force required to do work

In physics, power is the rate at which _________ is used.

• Current

• Speed

• Energy

• Force

To solve for power, we use the formula: Power = Work divided by _________.

• Velocity

• Force

• Distance

• Time

Standard unit for Power

• Ampere

• Newton

• Joule

• Watt

If it takes 1000 J of work to climb up the stairs in 5 seconds

• 2 W

• 5 W

• 250 W

• 200 W

A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?

HINTS: Torque = Force x Distance

50 cm = 1/2 meter

• 7.5 Nm

• 1.5 Nm

• 750 Nm

• 150 Nm