A FORCE that OPPOSES MOTION.
A. Friction
B. Velocity
C. Speed
A. Friction.
What unit is used to measure force?
A. Centimeters (cm)
B. Newtons (N)
C. Milligram (mg)
B. Newtons (N).
If a car travels 100 miles in 1 hour. What is its average speed?
A. 10 mi/hr
B. 100 mi/hr
C. 1 mi/hr
B. 100 mi/hr
Is there more or less gravity in space?
Less.
The DISTANCE traveled DIVIDED by the TIME it takes to travel that distance.
A. Acceleration
B. Speed
C. Velocity
B. Speed.
Is friction a type of force?
Yes or No
Yes.
All the forces acting on an object added together.
A. Acceleration
B. Friction
C. Net Force
C. Net Force.
A toy car is moved 80cm in 2.0 seconds. What is its average speed?
A. 40 cm/s
B. 80 cm/s
C. 2.0 cm/s
A. 40 cm/s
Who discovered gravity?
A. Neil Armstrong
B. Usain Bolt
C. Isaac Newton
C. Isaac Newton.
The SPEED of an object in a DIRECTION.
A. Speed
B. Acceleration
C. Velocity
C. Velocity.
Can more than one force act on an object at the same time?
Yes or No
Yes.
If an two forces are acting on an object in OPPOSITE directions, do you add or subtract them to find the net force?
Subtract.
Two dogs are pulling a toy in OPPOSITE directions. Dog A pulls with a force of 40 N to the right and Dog B pulls with a force of 30 N to the left. What is the net force?
A. 70N
B. 10N
C. 40N
B. 10N
The MEASURE of GRAVITATIONAL FORCE on an object.
A. Mass
B. Weight
C. Gravity
B. Weight.
The RATE at which VELOCITY CHANGES over time.
A. Acceleration
B. Velocity
C. Speed
Acceleration.
What type of surface would create more friction? Rough or smooth?
A rough surface.
Which book needed the LEAST force to move?
Book w/ straws.
A car increases velocity from 0 m/s to 80 m/s. The time it takes to do this is 4 s. What was the acceleration of this car?
A= velocity final – velocity initial / time
A. 20 m/s2
B. 80 m/s2
C. -20 m/s2
A. 20 m/s2
A FORCE of ATTRACTION that is due to the masses of two objects.
A. Gravity
B. Mass
C. Friction
A. Gravity.
What is the formula for acceleration?
A. Distance / Time
B. Velocity Final - Velocity Initial / Time
C. Distance / Time in a direction
B. Velocity Final - Velocity Initial / Time