Show:
Net Force
Design Thinking
Measurement Prefixes
Units
Vocabulary
100

A cyclist was traveling against the wind at 32 km/hr2 and had a mass of 27.5 kg. What was the net force applied to the bike?

880N

100

What is the first step of Design Thinking?

Empthaize

100

What is the prefix of k?

kilo-

100

What is the unit for seconds?

T
100

Force

Force is an action that can change motion. It is a push or a pull.

200

A new test rocket was launched from a local field. The rocket had a mass of 528 kg and accelerated at 37.9 m/s2. What was the force exerted by the rocket as it traveled through the air?

19,975 N

200

What is the second step of Design Thinking?

Define

200

What is the prefix of m (10^-3)?

milli-

200

What is the unit for acceleration?

m/s/s, m/s^2

200

Kinematics

It describes the motions of points, bodies, and systems of bodies without considering the forces that cause them to move.

300

A hockey player was practicing for an upcoming game and asked his coach to record his average acceleration when hitting the hockey puck. The player exerts an force on the hockey puck, causing it to accelerate at 117.5 m/s2. The hockey puck has a mass of 170 g. What is the hockey puck's net force when hit?

20 N

300

What is the third step of Design Thinking?

Ideate

300

What is the prefix of n?

nano-

300

What is the unit for Force?

N

300

Density

Is the amount of mass in a volume, units

400

A skier races downhill at a rate of 1.7 m/s2, but came in second place. The competitor who came in first had a mass of 52 kg. If both skiers were recorded going the same acceleration, how much net force did the first place skier exert in the competition?

88 N

400

What is the fourth step of Design Thinking?

Prototype

400

What is the prefix of g?

giga-

400

What is the unit for Net Force?

F

400

Buyancy

Is an upward force exerted by a fluid that opposes the weight of an immersed object.
500

A child was playing catch with their dog where they would throw a ball, and the dog would catch it in its mouth. The mass of the ball thrown was 0.058 kg. The ball accelerated at 3.5 m/s2 towards the dog. What is the net force, to the nearest Newtons, that accelerates the ball?

0.2N

500

What is the fifth step of Design Thinking?

Test

500

What is the prefix of μ?

micro-

500

What is the unit coefficient of friction?

μ

500

Terminal Velocity

The maximum speed of a falling object can't fall any faster because the air friction cancels out the force of gravity.