7 Science Term 3 Pre-Test

What is the definition of a force?

• What Jedi use .....

• A push, pull or twist that affects an objects motion

• Energy

• Gravity

What is the unit used to measure force?

• Newton

• Kilogram

• Joule

• Degrees

Which variable do you change in a scientific experiment?

• Controlled

• Independent

• Dependent

• Hypothesis

What is a fair test?

• Change one thing, measure one thing, keep everything else the same.

• Change two things, keep everything else the same.

• Keep the groups the same

• Measure only one thing

A golf ball is used in the game golf. Players use a golf club to hit the ball with the goal of getting it into a hole. What force(s) are acting on the golf ball?

• Gravity

• Push

• Friction

• All of the above

Which of the following surfaces would have the most amount of friction?

• Carpet

• Polished wood

• Mud

• Concrete

What is the force that causes objects to fall to the Earth?

• Water resistance

• Air resistance

• Gravity

• Pressure

What forces slows you down when sky diving?

• Electrostatic

• Air resistance

• Gravity

• Wind

In which direction does gravity act?

• Upwards

• Left

• Right

• Downwards

What type of force is air resistance?

• Contact

• Non-contact