Force and Motion (SJM)

Force and Motion (SJM)

Multiple Choice

When you rub your hand heat energy is generated because of _____

• Magnetism

• Muscular force

• Electrostatic force

• Friction

Multiple Choice

In what condition the magnetic poles attract each other?

• South-South

• North-North

• North-South

• All of the above

Multiple Choice

Is the force usually exerted by a surface on an object that is resisting against it.

• Friction

• Normal force

• Elasticity

• Tension

Multiple Choice

Are forces applied when the objects involved are in direct contact.

• Contact forces

• Normal forces

• action-at-a-distance forces

Multiple Choice

Are forces applied when the objects involved are in direct contact.

• Contact forces

• Normal forces

• action-at-a-distance forces

Multiple Choice

Force is measured in

• Space

• Time

• Nyes

• Newtons

Multiple Choice

Work is measured in

• Joules

• Watts

• Seconds

• Meters

Multiple Choice

All of these are measured in joules EXCEPT

• Work

• Potential Energy

• Kinetic Energy

• Weight

Multiple Choice

SI unit for weight

• Pound

• Liter

• Newton

• Second

Multiple Choice

Speed and velocity are measured in the same SI unit

• True

• False

Multiple Choice

Newtons could be used to measure __________ and __________.

• mass, speed

• momentum, work

• force, weight

• direction, power

Multiple Choice

Newtons could be used to measure __________ and __________.

• mass, speed

• momentum, work

• force, weight

• direction, power

Multiple Choice

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed
• Balanced Forces, Acceleration
• Unbalanced Forces, Constant Speed
• Unbalanced Forces, Acceleration

Multiple Choice

A soccer ball sitting on the ground motionless.

• Balanced Force

• Unbalanced Force

Multiple Choice

A book sitting on a shelf.

• Balanced Force

• Unbalanced Force

Multiple Choice

A skier skiing through flags in a race down the mountain.

• Balanced Force

• Unbalanced Force

Multiple Choice

Two ice skaters moving in a straight line at a constant speed.

• Balanced Force

• Unbalanced Force

Multiple Choice

A car accelerating around a mountain curve.

• Balanced Force

• Unbalanced Force

Multiple Choice

The moon orbiting the Earth at a constant speed.

• Balanced Force

• Unbalanced Force

Multiple Choice

The moon orbiting the Earth at a constant speed.

• Balanced Force

• Unbalanced Force

Force Diagrams

Multiple Select

The name for this type of diagram is...

• free body diagram

• box diagram

• free box diagram

• stem and leaf diagram

Multiple Choice

Which diagram best shows person pushing a couch (accelerating) across the floor?

Multiple Choice

If this object were moving right, the left-arrow in this diagram is most-likely:

• gravity

• normal

• a push or pull

• friction

Multiple Choice

The up-arrow in this diagram is most-likely:

• gravity

• normal

• applied force

• friction

Multiple Select

The net forces on this object are pushing or pulling in these directions: (pick all that are correct)

• up

• down

• left

• right

Multiple Choice

The down-arrow in this diagram is most-likely:

• gravity

• normal

• a push or pull

• friction

Multiple Choice

What is the NET FORCE of this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up

Multiple Choice

What is the NET FORCE of this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up

Multiple Choice

What is speed?

• The rate at which an object changes position
• The direction an object is moving
• moving fast
• change in speed or direction

Multiple Choice

Calculate these 3 car's speeds, then rank them in order of fastest to slowest, with 3 being the fastest car and 1 the slowest car.
Car A- distance: 4 meters, time: 2 sec
Car B- distance: 2 meters, time: 2 sec
Car C- distance: 8 meters, time: 2 sec

• Car A= 1
  Car B= 2
  Car C = 3
• Car A = 2
  Car B= 1
  Car C= 3
• Car A= 3
  Car B= 1
  Car C = 2
• Car A = 3
  Car B= 2
  Car C= 1

Multiple Choice

Which car is going the fastest speed?

• Car A-
   10 miles/hour
• Car B-
  20 miles/hour
• Car C-
  30 miles/hour
• Car D-
  40 miles/hour

Multiple Choice

Reese can run 10 meters in 5 seconds. What is her speed?

• 5 meters/sec
• 2 meters/sec
• 5 miles/hour
• 2 miles/hour

Multiple Choice

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

Multiple Choice

Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?

• 400 minutes
• 100 minutes
• 100 seconds 
• .25 seconds 

Multiple Choice

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

• 10 m/s

• 1000 m/s

• 100 seconds

• 10 seconds

Multiple Choice

Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home. He does so in 267 seconds. What is Bill's average speed?

• about 3 m/s

• about 1.5 m/s

• 0

• about 4 m/s

Multiple Choice

Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home. He does so in 267 seconds. What is Bill's average speed?

• about 3 m/s

• about 1.5 m/s

• 0

• about 4 m/s