Mr. Ted's Science class Monday November 10th, 2015 Unit: Grand Prix What are we doing today? (1) Learning about Types of Forces: Contact forces and non-contact forces. (2) Experiment: Magnetic forces and Electrostatic force (3) Define: contact force, non-contact force, Magnetic force, Electrostatic force, and upthrust.

Mr. Ted's Science class Monday November 10th, 2015 Types of Forces Contact force: A force that affects objects when it touches them. Non-contact force: A force that affects objects without touching them. Contact: لمس Non-contact: غير اللمس affect: المساس touching: اللمس without: بدون

Mr. Ted's Science class Monday November 10th, 2015 Types Force Activity 2.1a Page 72 1. Rub on balloon on your clothes 2. Hold the balloons close to each other but not touching. What happens? ______________________________ 3. Rub both balloons on same clothes 4. Hold the balloons close together, like before, but not touching. What happens? ___________________________________________

Mr. Ted's Science class Monday November 10th, 2015 Types Force Activity 2.1b Page 72 1. Place one magnet on a table. 2. Bring the second magnet slowly towards it. What happens? _________________________________ 2. Turn the magnet on the table 900 degrees. 3. Bring the second magnet slowly towards it. What happens? __________________________________________

Mr. Ted's Science class Monday November 10th, 2015 Types Force Activity 2.1c Page 73 1. Fold a piece of paper in half. 2. Tear off one half. 3. Keep one half of the paper flat on the table 4. Crumble the second half of the paper 5. Drop them both from the same height. What happens? ______________________________

Mr. Ted's Science class Monday November 10th, 2015 Types Force Activity 2.1e Page 74 1. Using the newton meter, pull the block across your table. Record the newton meter measurement ___________ 2. Using the newton meter, pull the block across a different surface.

Magnetic force: A pull or a push force from a magnet Mr. Ted's Science class Monday November 10th, 2015 Types of Forces Magnetic force: A pull or a push force from a magnet Magnet: المغناطيس Pull: سحب Push: إدفع Force: قوة

Mr. Ted's Science class Monday November 10th, 2015 Types of Forces Electrostatic Force: A force that objects have because they are electrically charged Electrostatic: كهرباء Ellectrically charged: المشحونة كهربائيا

Upthrust Force: The force that water makes on things floating on it Mr. Ted's Science class Monday November 10th, 2015 Types of Forces Upthrust Force: The force that water makes on things floating on it Upthrust: تمرين الضغط Floating: عائم

Activity sheet / Homework Mr. Ted's Science class Monday November 10th, 2015 Test Your knowledge Activity sheet / Homework